Introduce an index for the various docs

Port some text from https://thomask.sdf.org/social/en/
2021-04-15 14:35:12 +01:00 · 2021-04-15 14:35:12 +01:00 · 0919a30be6
--- a/docs/index.html
+++ b/docs/index.html
@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>GNU social &mdash; Documentation</title>
+  <link rel="shortcut icon" href="//gnusocial.rocks/favicon.ico">
+  <link rel="stylesheet" href="https://unpkg.com/purecss@2.0.5/build/pure-min.css">
+  <link rel="stylesheet" href="https://unpkg.com/purecss@2.0.5/build/grids-responsive-min.css">
+  <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css">
+  <link rel="stylesheet" href="//gnusocial.rocks/assets/css/style.css">
+  <style>
+  .content-wrapper {
+    top: 2em;
+  }
+  </style>
+</head>
+
+<body>
+  <header class="header">
+      <div class="home-menu pure-menu pure-menu-horizontal pure-menu-fixed">
+        <a class="pure-menu-heading" href="//gnusocial.rocks/">GNU social</a>
+        <ul class="pure-menu-list">
+          <li class="pure-menu-item pure-menu-selected"><a
+              href="#" class="pure-menu-link">Documentation</a></li>
+          <li class="pure-menu-item"><a href="/user" class="pure-menu-link">User</a></li>
+          <li class="pure-menu-item"><a href="/administrator" class="pure-menu-link">Administrator</a></li>
+          <li class="pure-menu-item"><a href="/developer" class="pure-menu-link">Developer</a></li>
+        </ul>
+      </div>
+  </header>
+  <div class="content-wrapper">
+    <div class="content">
+
+      <h2 class="content-head is-center">Documentation</h2>
+      <p>GNU social is distributed with three documentations.</p>
+      <p>The <a href="/user">User</a> one is intended to illustrate the various common use cases, possibilities regarding customization and introduce the existing functionalities.</p>
+      <p>The <a href="/administrator">Administrator</a> one explains the step by step of how to install and maintain a GNU social instance, be it as node of The Free Network or as an intranet social network in a company setting.</p>
+      <p>The <a href="/developer">Developer</a> one starts by introducing the Modules system and architecture, then the plugin development process and finally the exciting internals of GNU social for those looking forward to make the most advanced contributions.</p>
+
+    </div>
+    <footer class="l-box is-center">
+      This site's source is <a href="https://code.undefinedhackers.net/GNUsocial/gnusocial.rocks">hosted here</a>.
+      The documentation's source is <a href="https://code.undefinedhackers.net/GNUsocial/gnu-social/src/branch/v3/docs">hosted here</a>.
+    </footer>
+  </div>
+</body>
+
+</html>