Added basic Sphinx files

Signed-off-by: Daniel Farrell <dfarrell@redhat.com>
Ignore Sphinx build dir

Signed-off-by: Daniel Farrell <dfarrell@redhat.com>
Basic stub description of project in Sphinx docs

Signed-off-by: Daniel Farrell <dfarrell@redhat.com>
Added docs build to Tox tests, closes #8

Signed-off-by: Daniel Farrell <dfarrell@redhat.com>