Add opensource.posit.co Python feed

ADD FEED

Hello! I am requesting to add the Posit Open Source Blog's Python feed to Planet Python. Thanks for considering!

My Name/Blog Name: Posit Open Source Blog

My Blog RSS or ATOM Python specific feed url: https://opensource.posit.co/languages/python/index.xml

I checked the following required validations: (mark all 5 with [x])

1. My feed is valid, I checked using https://validator.w3.org/feed/check.cgi?url=MY_FEED_URL and it is valid!
2. My feed is a Python Specific feed, e.g: I am proposing the filtered tag or categorized feed url
3. I only post content to this feed which is related to the Python language and its components and libraries. Or content that I consider interesting for the Python community.
4. I am aware that once my feed is added it can take a few hours to start being fetched (according to the server update cycle)
5. My feed contains only content in English language.

Thanks in advance for adding my feed to the PythonPlanet! 👍

首先定位 Planet Python 的 feed 配置，并查看现有的 Python 专用 feed 是如何列出的。添加位于 https://opensource.posit.co/languages/python/index.xml 的 Posit Open Source Blog feed，然后验证配置接受该 feed 且仍然有效。