:handshake: Update README.md to add python-socketio (#230)

Co-authored-by: Jeff Triplett <jefftriplett@users.noreply.github.com>

README.md

@@ -315,6 +315,8 @@ _A short list of Python packages that work well with Django._
 - [python-decouple](https://github.com/henriquebastos/python-decouple) - Strict separation of settings from code.
 - [python-slugify](https://github.com/un33k/python-slugify) - Returns unicode slugs.
 - [sentry-python](https://github.com/getsentry/sentry-python) - Error reporting SDK.
+- [python-socketio](https://github.com/miguelgrinberg/python-socketio) - Python implementation of the Socket.IO_ realtime client and server. [(create Socket.io Django server instance)](https://python-socketio.readthedocs.io/en/latest/server.html?highlight=django#creating-a-server-instance)
+- [whitenoise](https://github.com/evansd/whitenoise) - Simplified static file serving for Python websites.
 
 ## Resources