:handshake: Add Better Simple's Django blog in the educational resources section (#373)

I've written ~50 blog posts on Django, the community and ecosystem. The intended audience varies based on the article. Not all of them are bangers, but I'm hoping the average quality meets the bar.

README.md

@@ -406,6 +406,7 @@ _A short list of Python packages that work well with Django._
 - [Django Template Tags and Filters](https://www.djangotemplatetagsandfilters.com/) - Additional docs on Django's 57 built-in template filters and 27 template tags.
 - [Django for Everybody](https://www.dj4e.com/) - A complete course for webdev beginners focused on Django.
 - [CS50W](https://cs50.harvard.edu/web/2020/) - Harvard's University introductory course to web development, it explains Django as backend framework.
+- [Better Simple](https://www.better-simple.com/blog/django/) - Articles from Tim Schilling about Django development, best practices, and the Django ecosystem.
 
 ### Community
 <!--lint disable double-link-->