Added Read the Docs config file

Additional correction of CHANGELOG.md

Version bump due to error in release handling

Version bump due to error in release handling

Fix for Workflow

Docstring fix

Version 1.3.0

Completed Azure Pipelines migration
Updated License, Manifest and documentation.

Version 1.2.0

Updated setup.py.
Updated travis build envs.
Added Pipfiles
Ran black on pyefd.py
Updated req on numpy.

Version 1.1.0

Merged pull request #1
Updated documentation.

Pytest