Add WP Theme Development Playlist (changes made) (#10979)

* Add WP Theme Development Playlist

* Update courses

Co-authored-by: Sohan Sai <76840110+sohansai@users.noreply.github.com>

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Co-authored-by: Sohan Sai <76840110+sohansai@users.noreply.github.com>

courses/free-courses-bn.md

@@ -348,4 +348,5 @@
 * [WordPress Customization Bangla Tutorial](https://www.youtube.com/playlist?list=PLbC4KRSNcMno7NzhTgGhoZtRjLiHUo8m4) - Learn Hunter
 * [WordPress Plugin Development](https://www.youtube.com/playlist?list=PLSNRR4BKcowCkeAxfdtTsLqwR0LJYwDaz) - Procoder BD
 * [WordPress Theme Development Tutorial Bangla ](https://www.youtube.com/playlist?list=PLSNRR4BKcowD6A-U_ll9ayJWqOEz3XD8l) - Procoder BD
+* [WP Theme Development with ChatGPT](https://www.youtube.com/playlist?list=PLn_JOV5gUeKwLEMqi93W6eswy4hEQ_ouL) - Md Maruf Adnan Sami