doc edits
stuff for example with densiry/abundance profiles
Merge branch 'docs-edit' of git://github.com/ssim/tardis into docs_fix
deleted a bunch of not needed files
fixed astropy objects.inv link
fixed the underline being too short
fixed index structure
restructured into an example section, as well as making literalincludes
added language to literalinclude
fixed some typos
fixed some spacing issues
Merge pull request #1 from wkerzendorf/docs_fix

Docs fix
Accepted changes to documentation
Merge pull request #77 from ssim/docs-edit

Docs edit