diff --git a/content/patterns/installation.md b/content/patterns/installation.md
index 6b5731e..0ca8172 100644
--- a/content/patterns/installation.md
+++ b/content/patterns/installation.md
@@ -4,7 +4,7 @@ title = "Installation"
 
 **Infusion** is built using the static site engine, [Hugo](https://gohugo.io/), and NPM. The codebase is available to download on Github. Let's get set up step-by-step.
 
-## 1. Install Hugo
+## Install Hugo
 
 First we need to install Hugo globally.
 
@@ -22,11 +22,11 @@ Alternatively, you can manually [install Hugo from a package](https://github.com
 
 Installing on Windows is a bit more involved than on OSX. The authors of Hugo provide [a guide](https://gohugo.io/tutorials/installing-on-windows/) with instructions for technical and less technical users.
 
-## 2. Install Node & NPM
+## Install Node & NPM
 
 It is likely you already have Node and NPM installed on your system. If so, you can skip this step. Otherwise, [refer to NPM's own guide](https://docs.npmjs.com/getting-started/installing-node), which includes a video tutorial.
 
-## 3. Getting the files
+## Getting the files
 
 **Infusion** is hosted on Github. To start using it, you'll need to get the files from there. If you are comfortable with the command line, just fork the [github.com/heydon/inclusive-pattern-library](https://github.com/heydon/inclusive-pattern-library) repository, then do a `git clone` to your local system. Replace `[your username]` in the following:
 
diff --git a/docs/index.xml b/docs/index.xml
index e4f37f1..48e4bab 100644
--- a/docs/index.xml
+++ b/docs/index.xml
@@ -112,7 +112,7 @@ The expandable shortcode takes three parameters:
       
       <guid>https://heydon.github.io/infusion/patterns/installation/</guid>
       <description>Infusion is built using the static site engine, Hugo, and NPM. The codebase is available to download on Github. Let&amp;rsquo;s get set up step-by-step.
-1. Install Hugo First we need to install Hugo globally.
+Install Hugo First we need to install Hugo globally.
 OSX users If you are a Mac user and have Homebrew on your system, installing Hugo is simple:
 brew install hugo Alternatively, you can manually install Hugo from a package. You can verify the installation was successful by typing:</description>
     </item>
diff --git a/docs/patterns/index.xml b/docs/patterns/index.xml
index 2b82be7..e629b77 100644
--- a/docs/patterns/index.xml
+++ b/docs/patterns/index.xml
@@ -17,7 +17,7 @@
       
       <guid>https://heydon.github.io/infusion/patterns/installation/</guid>
       <description>Infusion is built using the static site engine, Hugo, and NPM. The codebase is available to download on Github. Let&amp;rsquo;s get set up step-by-step.
-1. Install Hugo First we need to install Hugo globally.
+Install Hugo First we need to install Hugo globally.
 OSX users If you are a Mac user and have Homebrew on your system, installing Hugo is simple:
 brew install hugo Alternatively, you can manually install Hugo from a package. You can verify the installation was successful by typing:</description>
     </item>
diff --git a/docs/patterns/installation/index.html b/docs/patterns/installation/index.html
index 5b9ad11..a32b295 100644
--- a/docs/patterns/installation/index.html
+++ b/docs/patterns/installation/index.html
@@ -268,20 +268,20 @@
     <ol>
       
         <li>
-          <a href="#1.-install-hugo">
-            1. Install Hugo
+          <a href="#install-hugo">
+            Install Hugo
           </a>
         </li>
       
         <li>
-          <a href="#2.-install-node--npm">
-            2. Install Node &amp; NPM
+          <a href="#install-node--npm">
+            Install Node &amp; NPM
           </a>
         </li>
       
         <li>
-          <a href="#3.-getting-the-files">
-            3. Getting the files
+          <a href="#getting-the-files">
+            Getting the files
           </a>
         </li>
       
@@ -294,7 +294,7 @@
 
 <p><strong>Infusion</strong> is built using the static site engine, <a href="https://gohugo.io/">Hugo</a>, and NPM. The codebase is available to download on Github. Let&rsquo;s get set up step-by-step.</p>
 
-<h2 id="1-install-hugo">1. Install Hugo</h2>
+<h2 id="install-hugo">Install Hugo</h2>
 
 <p>First we need to install Hugo globally.</p>
 
@@ -314,11 +314,11 @@
 
 <p>Installing on Windows is a bit more involved than on OSX. The authors of Hugo provide <a href="https://gohugo.io/tutorials/installing-on-windows/">a guide</a> with instructions for technical and less technical users.</p>
 
-<h2 id="2-install-node-npm">2. Install Node &amp; NPM</h2>
+<h2 id="install-node-npm">Install Node &amp; NPM</h2>
 
 <p>It is likely you already have Node and NPM installed on your system. If so, you can skip this step. Otherwise, <a href="https://docs.npmjs.com/getting-started/installing-node">refer to NPM&rsquo;s own guide</a>, which includes a video tutorial.</p>
 
-<h2 id="3-getting-the-files">3. Getting the files</h2>
+<h2 id="getting-the-files">Getting the files</h2>
 
 <p><strong>Infusion</strong> is hosted on Github. To start using it, you&rsquo;ll need to get the files from there. If you are comfortable with the command line, just fork the <a href="https://github.com/heydon/inclusive-pattern-library">github.com/heydon/inclusive-pattern-library</a> repository, then do a <code>git clone</code> to your local system. Replace <code>[your username]</code> in the following:</p>
 
diff --git a/docs/service-worker.js b/docs/service-worker.js
index fecac72..ca2bd9e 100644
--- a/docs/service-worker.js
+++ b/docs/service-worker.js
@@ -37,7 +37,7 @@
 /* eslint-disable indent, no-unused-vars, no-multiple-empty-lines, max-nested-callbacks, space-before-function-paren, quotes, comma-spacing */
 'use strict';
 
-var precacheConfig = [["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","0ac1d02cfbcad2fcc8c13b2c54715338"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/fonts/pt_sans-web-bold.woff","f83c22b548d2d684e24e315d81f7d22b"],["css/fonts/pt_sans-web-bold.woff2","84520c22e6ebf1b30b6f17251d65fff7"],["css/fonts/pt_sans-web-italic.woff","31f09f09a1d3fbe6c8de19644ef0e614"],["css/fonts/pt_sans-web-italic.woff2","df128e1d5a449fc0506fc1b48aac0184"],["css/fonts/pt_sans-web-regular.woff","32100f6ebf01af64d4a71416561c072d"],["css/fonts/pt_sans-web-regular.woff2","b6d4ede9a3a5dbe4d5ac242ae4b0ecc2"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","e57f2b72a91e67ab2a5581fbcf72a7d0"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-114x114.png","72e127d6f01dfcd2ba2340141babc536"],["images/apple-icon-120x120.png","bc7cd9e36869e66aaca78412207bf723"],["images/apple-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/apple-icon-152x152.png","567c64205576865b5e5d06c849613ca2"],["images/apple-icon-180x180.png","6b8734c446bf02ab50be598b4c01ec9c"],["images/apple-icon-57x57.png","f8c586086752c78870820b6190d6b42b"],["images/apple-icon-60x60.png","6e88df111e506bcd5501bed4ff10542e"],["images/apple-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/apple-icon-76x76.png","d8666e0ac256f39f8c5c628486bd71fb"],["images/apple-icon-precomposed.png","725f6cec25256abb1db10385e0724400"],["images/apple-icon.png","725f6cec25256abb1db10385e0724400"],["images/browser-Chrome-Android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-Chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-Edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-Firefox-Android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-Firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-IE.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-Opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-Safari-iOS.svg","f729e629ec998ec40d313495d7257741"],["images/browser-Safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.png","0134d77c2c6b01eabb425990bab7ce9a"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["images/steve_faulkner.jpg","b90382f2b505ce6f6b1e08657637395e"],["index.html","5a0267c4095b6a6851a2a8825053cc7a"],["index.xml","0f2a2e8fb43ec7e2d6f4de996f0ad442"],["js/dom-scripts.js","9956fb927a1097a05d07f48cdfbb9140"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["js/webcomponents.js","c5f6fe397db634cde89f66c2f1bc2f62"],["manifest.json","4e77b7f1253442852a2f185822f1b4d8"],["patterns/coding/code-blocks/index.html","ba8574de1814df1633ce093c0f448fe7"],["patterns/coding/codepen-embedding/index.html","7f9e6c1b6227b9ab3eae9ec33424a2b0"],["patterns/coding/color-palettes/index.html","7ae21a206ad5d8deeee9d77a57bae4c9"],["patterns/coding/index.html","0f7888ba74ad3012f450baa7b75e5486"],["patterns/coding/index.xml","e05792f5d471e69af658fcfe0d949e05"],["patterns/coding/tested/index.html","fc75ec2965ba554d1cd5ff7ecc924bbf"],["patterns/coding/writing-inline-demos/index.html","b3cc17bfcdf243e058dc8c5ce4f2f9e1"],["patterns/index.html","d8a7d1531fdc33125ddb73dba0607548"],["patterns/index.xml","b2fe2e8940440bfcc3f152e9c43f4a28"],["patterns/installation/index.html","ff5739b31124314a7e4da1af6d059a9a"],["patterns/library-setup/index.html","a66baa28ece291d5542687f837f73b02"],["patterns/media/including-images/index.html","a2c819e409c2a0c770ce240210c0990c"],["patterns/media/including-videos/index.html","eeb0ba3943cbb019217acb04e3c92181"],["patterns/media/index.html","7dbd872072b3221e50ed1baa8ac347b1"],["patterns/media/index.xml","4a9c518cde77c958c19472b4f6980fd6"],["patterns/serving/index.html","448f1a59990139bf8e5e61c8138aa8ea"],["patterns/writing/expandable-sections/index.html","7215479bfdab51fe44117d9538f40d6b"],["patterns/writing/index.html","e8acf1d72503cbebfee47cf2ec9ab10d"],["patterns/writing/index.xml","4df8e70bce37e4e695563a67f5ff2cfd"],["patterns/writing/library-structure/index.html","ce6adc5ce47902af42e32b6be5239edb"],["patterns/writing/markdown-and-metadata/index.html","53a85095e412b62cf19f028d8be445ae"],["patterns/writing/notes-and-warnings/index.html","1d14e46563376bd1c86ba3ae4ad26ea1"],["patterns/writing/references/index.html","1e8a9fc79f83c17944f7eb543b9eeb46"],["patterns/writing/tables-of-contents/index.html","21afc4584103d1c234c9a942da54104e"],["sitemap.xml","85e08796b1c8c18551a4c2ac407eff66"],["tags/index.xml","c49e6e2b318d5ee86534194441e4dc1e"]];
+var precacheConfig = [["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","0ac1d02cfbcad2fcc8c13b2c54715338"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/fonts/pt_sans-web-bold.woff","f83c22b548d2d684e24e315d81f7d22b"],["css/fonts/pt_sans-web-bold.woff2","84520c22e6ebf1b30b6f17251d65fff7"],["css/fonts/pt_sans-web-italic.woff","31f09f09a1d3fbe6c8de19644ef0e614"],["css/fonts/pt_sans-web-italic.woff2","df128e1d5a449fc0506fc1b48aac0184"],["css/fonts/pt_sans-web-regular.woff","32100f6ebf01af64d4a71416561c072d"],["css/fonts/pt_sans-web-regular.woff2","b6d4ede9a3a5dbe4d5ac242ae4b0ecc2"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","e57f2b72a91e67ab2a5581fbcf72a7d0"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-114x114.png","72e127d6f01dfcd2ba2340141babc536"],["images/apple-icon-120x120.png","bc7cd9e36869e66aaca78412207bf723"],["images/apple-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/apple-icon-152x152.png","567c64205576865b5e5d06c849613ca2"],["images/apple-icon-180x180.png","6b8734c446bf02ab50be598b4c01ec9c"],["images/apple-icon-57x57.png","f8c586086752c78870820b6190d6b42b"],["images/apple-icon-60x60.png","6e88df111e506bcd5501bed4ff10542e"],["images/apple-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/apple-icon-76x76.png","d8666e0ac256f39f8c5c628486bd71fb"],["images/apple-icon-precomposed.png","725f6cec25256abb1db10385e0724400"],["images/apple-icon.png","725f6cec25256abb1db10385e0724400"],["images/browser-Chrome-Android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-Chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-Edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-Firefox-Android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-Firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-IE.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-Opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-Safari-iOS.svg","f729e629ec998ec40d313495d7257741"],["images/browser-Safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.png","0134d77c2c6b01eabb425990bab7ce9a"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["images/steve_faulkner.jpg","b90382f2b505ce6f6b1e08657637395e"],["index.html","5a0267c4095b6a6851a2a8825053cc7a"],["index.xml","dbf42b2ee916e9b57511d76f9ef92438"],["js/dom-scripts.js","9956fb927a1097a05d07f48cdfbb9140"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["js/webcomponents.js","c5f6fe397db634cde89f66c2f1bc2f62"],["manifest.json","4e77b7f1253442852a2f185822f1b4d8"],["patterns/coding/code-blocks/index.html","ba8574de1814df1633ce093c0f448fe7"],["patterns/coding/codepen-embedding/index.html","7f9e6c1b6227b9ab3eae9ec33424a2b0"],["patterns/coding/color-palettes/index.html","7ae21a206ad5d8deeee9d77a57bae4c9"],["patterns/coding/index.html","0f7888ba74ad3012f450baa7b75e5486"],["patterns/coding/index.xml","e05792f5d471e69af658fcfe0d949e05"],["patterns/coding/tested/index.html","fc75ec2965ba554d1cd5ff7ecc924bbf"],["patterns/coding/writing-inline-demos/index.html","b3cc17bfcdf243e058dc8c5ce4f2f9e1"],["patterns/index.html","d8a7d1531fdc33125ddb73dba0607548"],["patterns/index.xml","dc1e5b6741587e830722d77a7f88d22f"],["patterns/installation/index.html","f955032ee962883a212a4c181221bdaf"],["patterns/library-setup/index.html","a66baa28ece291d5542687f837f73b02"],["patterns/media/including-images/index.html","a2c819e409c2a0c770ce240210c0990c"],["patterns/media/including-videos/index.html","eeb0ba3943cbb019217acb04e3c92181"],["patterns/media/index.html","7dbd872072b3221e50ed1baa8ac347b1"],["patterns/media/index.xml","4a9c518cde77c958c19472b4f6980fd6"],["patterns/serving/index.html","448f1a59990139bf8e5e61c8138aa8ea"],["patterns/writing/expandable-sections/index.html","7215479bfdab51fe44117d9538f40d6b"],["patterns/writing/index.html","e8acf1d72503cbebfee47cf2ec9ab10d"],["patterns/writing/index.xml","4df8e70bce37e4e695563a67f5ff2cfd"],["patterns/writing/library-structure/index.html","ce6adc5ce47902af42e32b6be5239edb"],["patterns/writing/markdown-and-metadata/index.html","53a85095e412b62cf19f028d8be445ae"],["patterns/writing/notes-and-warnings/index.html","1d14e46563376bd1c86ba3ae4ad26ea1"],["patterns/writing/references/index.html","1e8a9fc79f83c17944f7eb543b9eeb46"],["patterns/writing/tables-of-contents/index.html","21afc4584103d1c234c9a942da54104e"],["sitemap.xml","85e08796b1c8c18551a4c2ac407eff66"],["tags/index.xml","c49e6e2b318d5ee86534194441e4dc1e"]];
 var cacheName = 'sw-precache-v3-sw-precache-' + (self.registration ? self.registration.scope : '');