Fixing some reorganization issues

boards/index.rst

-Boards
+BOARDS
 #########
 
 `BeagleBone <beaglebone>`__ is a family of ARM-based, Linux-capable boards intended to be

books/index.rst

-Books
+BOOKS
 ********
 
 This is a collection of open-source books written to help Beagle developers.

index.rst

@@ -10,31 +10,24 @@ Sections
 ********
 
 .. toctree::
-   :maxdepth: 1
-   :caption: Introduction
+   :maxdepth: 2
 
    intro/index.rst
 
 .. toctree::
-   :maxdepth: 1
-   :caption: Boards
+   :maxdepth: 2
 
    boards/index.rst
 
 .. toctree::
-   :maxdepth: 1
-   :caption: Projects
+   :maxdepth: 2
 
    projects/index.rst
-   simppru/index.rst
 
 .. toctree::
-   :maxdepth: 1
-   :caption: Books
+   :maxdepth: 2
 
    books/index.rst
-   beaglebone-cookbook/index.rst
-   pru-cookbook/index.rst
 
 Indices and tables
 ############################

intro/index.rst

+INTRODUCTION
+*************
+
+Welcome to the BeagleBoard documentation project. If you are looking for help with your Beagle
+open-hardware development platform, you've found the right place!
+
+Please check out our `Support Page <support>`__ to find out how to get started, resolve issues,
+and engage the developer community.
+
+Don't forget that this is an open-source project! Your contributions are welcome. Learn about how
+to contribute to the BeagleBoard documentation project and any of the many open-source Beagle
+projects on-going on our `Contribution Page <contribution>`__.
+
+.. toctree::
+   :maxdepth: 1
+
+   support/index.rst
+   contribution/index.rst
+

projects/index.rst

-Projects
+PROJECTS
 ********
 
 This is a collection of reasonably well-supported projects useful to Beagle developers.