LaTeX doesn't know how to typeset SVG images, so use a png. Sphinx has a
plugin to automatically convert images to the right format for every
builder but it depends on imagemagick and God only knows what plugin
support is like on Centos 6...
Also correct the name of the BGP typecodes doc in its index file.
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
* Move doc/code/ -> doc/developer/
* Move disparate code documentation to doc/developer/
* Convert Markdown docs to reStructuredText
* Organize docs into Sphinx tree
* Move build docs -> doc/developer/
* Change build doc titles to fit under Building subsection of manual
Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>