clarify initial usage instructions for installation.

[gbinal]

On this page, I'm following the steps quite happily, but when I run step 3, I get this message: open cert-1.yaml: no such file or directory.

Apparently, the certifications listed in the suggested template don't work out of the box. I was told to use this template instead and it worked fine but it'd be good to update the instructions.

[shawndwells]

Using the template suggested above, I can perform a compliance-masonry get, but when trying to convert into a doc:

$ compliance-masonry docs gitbook foo
Error: `opencontrols/certifications/a.yaml` does not exist
Use one of the following:
FedRAMP-low
FedRAMP-moderate
LATO
[shawn@devbox openshift-masonry]$ compliance-masonry docs gitbook FedRAMP-low
Warning: markdown directory does not exist
Component files does not exist
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version
Unknown schema version

Love the idea of compliance masonry, but there doesn't appear to be any working examples of how to get this setup.

[anweiss]

If you installed compliance-masonry from Releases, the binaries are a bit out of date. Try following the dev install docs here.

@jcscottiii ^ ... we should run another goxc and publish

[git-ingham]

This issue could also be fixed by fixing this issue:
Parsing errors should display the offending file information #168