Restructured all docs

Version 0.7.3; trying to fix my docs issue.

Update docs and add init file to activities module. Version 0.7.2

Version 0.7.1, fixed typo in dog api, redo of docs

Version 0.7.0

Version 0.6.0

Version 0.5.0, and ising wheel instead of egg

Version 0.4.0

Add dependencies

Add requirements to pyproject.toml file. New patch version.