Added bengali cheatsheet link from the devsonket team. (#4763)

* Added bengali cheatsheet link from devsonket team

* moved to misc

Co-authored-by: Eric Hellman <eric@hellman.net>

free-programming-books-bl.md

@@ -3,7 +3,7 @@
 * [C](#c)
 * [JavaScript](#JavaScript)
 * [Machine Learning](#machine-learning)
-* [PROGRAMMING FUNDAMENTALS](#programming-fundamentals)
+* [Misc](#misc)
 * [Python](#python)
 
 
@@ -23,9 +23,10 @@
 * [হাতে কলমে মেশিন লার্নিং ১](https://rakibul-hassan.gitbook.io/mlbook-titanic/) - Rakibul Hassan
 
 
-### PROGRAMMING FUNDAMENTALS
+### Misc
 
 * [SL3 Framework - Code For Brain](https://sl3.app) - Stack Learners
+* [ডেভসংকেত: বাংলা চিটশিটের ভান্ডার](https://devsonket.com) - Devsonket Team
 
 
 ### Python