Cleanup TOC

docs/extend.md

-# Extend
-
 **CiviCRM Extensions** are packaged pieces of functionality that extend CiviCRM's out-of-the-box functionality, independent of CMS plaform.
 
 This section covers writing extensions, submitting extensions to the public extensions directory, and the review process for extensions submitted to the directory.

docs/index.md

-# Build
+<h1>Build</h1>
 
 CiviCRM is an open-source application which can be poked, prodded, twisted,
 and hacked.  It can be customized (with minimal code skills), extended (for
@@ -39,7 +39,7 @@ add-ons and integrations), and collaboratively developed.
 
 These documents are a work in progress. You may find things in the <a href="http://wiki.civicrm.org/confluence/display/CRMDOC/Develop" target="_blank">wiki</a> that are not documented here. 
 
-# Collaborate
+<h1>Collaborate</h1>
 
 As an open-source project, CiviCRM is managed by an international community
 of developers and activists. If you have questions, issues, or want to make

mkdocs.yml

 site_name: CiviCRM Developer Documentation
 theme: readthedocs
+pages:
+ - Home: index.md
+ - Guide:
+   - Requirements: requirements.md
+   - Build: build.md
+   - Customize: customize.md
+   - Extend: extend.md
+   - Develop: develop.md
+   - Testing: testing.md
+ - Reference:
+   - API: api.md
+   - hook: hook.md
+   - hookref-old: hookref-old.md
+   - hooks-db: hooks-db.md
+ - Gunk:
+   - chapter: chapter.md
+   - markdown: markdownrules.md