Describe the bug

Examining improvements to profile resolution code (#1175) we are finding the readmes directing users in operating the profile resolver are defective.

The readmes explaining how to operate the XSLT profile resolver, with dependencies, limitations, and options, need to be updated.

Who is the bug affecting?

Anyone who wants to use the profile resolver and can't figure it out for themselves.

What is affected by this bug?

XSLT profile resolver is harder to (figure out how to) use.

Expected behavior (i.e. solution)

Update the readmes to be more helpful.