Update position of pod documentation. The format used here has a trailing pod section containing all documents
rather than inline documentation. Previously the resulting POD display became mangled upon render
Add README to repo such that the project description will be made public. Previously a user was required
to read through the code and parse out the POD to see the description.

This file is generated through the Makefile. Moving forward this will just be periodically done by hand
such that the README stays up to date.
Update document to properly reference the name of the method which returns specificity for a given selector
Merge pull request #4 from kamelkev/master

Update documentation