Documentation overhaul

docs/development/aa_core/documentation.md

@@ -1,4 +1,4 @@
-# Documentation
+# Alliance Auth documentation
 
 The documentation for Alliance Auth uses [Sphinx](http://www.sphinx-doc.org/) to build documentation. When a new commit
  to specific branches is made (master, primarily), the repository is automatically pulled, docs built and deployed on

docs/development/aa_core/index.md

@@ -0,0 +1,10 @@
+# Developing AA Core
+
+This section contains important information on how to develop Alliance Auth itself.
+
+```eval_rst
+.. toctree::
+    :maxdepth: 1
+
+    documentation
+```

docs/development/custom/index.md

@@ -0,0 +1,12 @@
+# Custom apps and services
+
+This section describes how to extend **Alliance Auth** with custom apps and services.
+
+```eval_rst
+.. toctree::
+    :maxdepth: 1
+
+    integrating-services
+    menu-hooks
+    url-hooks
+```

docs/development/index.md

@@ -1,10 +1,11 @@
 # Development
 
+**Alliance Auth** is designed to be extended easily. Learn how to develop your own apps and services for AA or to develop for AA core in the development chapter.
+
 ```eval_rst
 .. toctree::
+    :maxdepth: 1
 
-    documentation
-    integrating-services
-    menu-hooks
-    url-hooks
+    custom/index
+    aa_core/index
 ```