v0.13.10_a10

• we now have a github action to at least test the local build of the project and lint
• added features doc
• uploaded getting-started and quickstart docs to have config files and cli options and further explanations
• fixed bug around key error with wallpapers_download_url
• added pip to the installed and updated python packages
• fixed issue where return code none causes an exception
• removed requirements.txt because it doesn't seem necessary with the setup.py