Move .rst files to source

[cgewecke]

To this:

docs /
  source /
    Authority.rst
    ...
  Makefile
  requirements.txt

This seems like what sphinx intends.

[coveralls]

Pull Request Test Coverage Report for Build 35

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 94.473%

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Totals
Change from base Build 33:	0.0%
Covered Lines:	408
Relevant Lines:	425

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💛 - Coveralls