Added some necessary Youtube playlist of Bengali Language

Bumps PR EbookFoundation#5760
Cherry picked from 66914d4

Co-authored-by: noobSrijon <[email protected]>

Author: davorpa

courses/free-courses-bn.md

@@ -185,6 +185,8 @@
 
 * [Python All You Need To Know](https://www.youtube.com/playlist?list=PL_XxuZqN0xVCH8fRfZ8sUuKEQQYIFMjtJ) - Stack Learner
 * [Python Bangla Tutorials for Beginners](https://www.youtube.com/playlist?list=PLgH5QX0i9K3rz5XqMsTk41_j15_6682BN) - Anisul Islam
+* [Bangla Python Tutorial for Beginners](https://www.youtube.com/playlist?list=PLlBKlxyCgmsCYJLq9qc5QzaU-oBFJN79B) - StartBit
+* [Python tutorials by Zulkarnine](https://www.youtube.com/playlist?list=PLV3rqOvr9vgkW7U-kdxtUBx74ICpw94k8) - Zulkarnine Mahmud
 
 
 ### TypeScript