docs: update and simplify all documentation (#39686)

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

docs/index.html

@@ -24,7 +24,9 @@
     + 'Since 2015, 40,000 graduates have gotten jobs at tech '
     + 'companies including Google, Apple, Amazon, and Microsoft.' name='twitter:description' />
 
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css" integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog==" crossorigin="anonymous" />
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css"
+    integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog=="
+    crossorigin="anonymous" />
 
   <!-- Theme -->
   <!-- <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsify-themeable@0/dist/css/theme-simple.css"> -->
@@ -46,6 +48,7 @@
       // Main Config
       homepage: 'index.md',
       loadSidebar: true,
+      autoHeader: true,
 
       // common aliases
       alias: {
@@ -76,7 +79,7 @@
       },
 
       'flexible-alerts': {
-        style: 'flat'
+        style: 'callout'
       },
 
       pagination: {
@@ -120,6 +123,8 @@
   <script src="https://unpkg.com/docsify-pagination/dist/docsify-pagination.min.js"></script>
   <script src="https://unpkg.com/docsify-remote-markdown/dist/docsify-remote-markdown.min.js"></script>
 
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/js/all.min.js" integrity="sha512-YSdqvJoZr83hj76AIVdOcvLWYMWzy6sJyIMic2aQz5kh2bPTd9dzY3NtdeEAzPp/PhgZqr4aJObB3ym/vsItMg==" crossorigin="anonymous"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/js/all.min.js"
+    integrity="sha512-YSdqvJoZr83hj76AIVdOcvLWYMWzy6sJyIMic2aQz5kh2bPTd9dzY3NtdeEAzPp/PhgZqr4aJObB3ym/vsItMg=="
+    crossorigin="anonymous"></script>
 
-</html>
+</html>