Add a few notes regarding our conventions when using Doxygen to markup our code.  Also, add an example for the internal documentation section.
Add a few notes regarding our conventions when using Doxygen to markup
our code.  Also, add an example for the internal documentation section.

Suggested by: glasser

* www/hacking.html
  (document-everything): Add a couple of examples.
  (doxygen-docs): New section.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion