Adds examples of custom integration directory names to Docs (openai#223)

* Adds directory names for custom integrations

* Removes quote

python 3.8 support (openai#201)

actually version was correct, update CHANGES

update changelog

src: Fix cropping loading/saving

README: Update

CHANGES: Update for 0.5.5

README: Migrate wheels to PyPI

Release 0.5.3

setup.py: Add PyPI info