Added 3 new Python learning resources and fixed language specification for CS Circles (German)

Added 3 new Python learning resources and fixed language specification for CS Circles (German)

Author: connectwithvanshika

more/free-programming-interactive-tutorials-de.md

@@ -5,4 +5,7 @@
 
 ### Python
 
-* [CS Circles - Interaktiv Python lernen!](https://cscircles.cemc.uwaterloo.ca/de/) - University of Waterloo & Bundesweite Informatikwettbewerbe (HTML)
+* [CS Circles - Interaktiv Python lernen!](https://cscircles.cemc.uwaterloo.ca/de/) - University of Waterloo & Bundesweite Informatikwettbewerbe (German) (HTML)
+* [Python for Everybody](https://www.py4e.com/) - Charles R. Severance (English) (HTML)
+* [Programiz Python Tutorial](https://www.programiz.com/python-programming) - Programiz (English) (HTML)
+* [Python Tutor](https://pythontutor.com/) - Philip Guo (English) (Interactive)