Update feed url for Grzegorz Śliwinki's blog

[fizyk]

!!! Please choose one template below ADD FEED, EDIT FEED or INFORM a BUG/PROBLEM.
PLEASE: Remove this headline and the unused templates!!!

EDIT FEED

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Hi, I want to change my current feed url from http://blog.fizyk.net.pl to https://fizyk.dev

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! 👍

NOTE: If you are adding a podcast feed please validate using http://castfeedvalidator.com/

[hugovk]

Thanks!