Convert the Getting Started wiki page to ReStructuredText format and add it
to the repository. Also add a script that will extract the shell commands
from the document and run them, so we can use it as an integration test.
The script can be run using the command:
> bash -c "$(./tools/rst2script.sed docs/GettingStarted.rst)"
Related: #84
Signed-off-by: Zane Bitter <zbitter@redhat.com>