Added Nextjs Resources in free-courses-ur.md (#11697)

* Added Nextjs Resources in free-courses-ur.md

* corrected spacing

* Update courses/free-courses-ur.md

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

---------

Co-authored-by: Hridyanshu7 <himank7794@gmail.com>
Co-authored-by: Eric Hellman <eric@hellman.net>

courses/free-courses-ur.md

@@ -8,6 +8,7 @@
 * [Figma](#figma)
 * [HTML and CSS](#html-and-css)
 * [Java](#java)
+* [Next.js](#nextjs)
 * [Python](#python)
 
 
@@ -57,6 +58,11 @@
 * [Java Programming in Urdu/Hindi](https://www.youtube.com/playlist?list=PLU4yvac0MJbKs78u32MyVgYFg9d-6DYGL) - OnlineUstaad
 
 
+### Next.js
+
+* [Master Next JS 14: Complete Next JS 14 Tutorial from Basics to Advanced in Hindi/Urdu with Projects & Interview Prep](https://www.youtube.com/playlist?list=PL5OhSdfH4uDu6YJcHhmQLkwx4hPWyppos) - The Techzeen
+
+
 ### Python
 
 * [Python](https://www.youtube.com/playlist?list=PL-vQNozaqIxuPzFUVEIrYDvd6ieUshJTw) - Kawish - Urdu