Add Free Punjabi Courses (#12331)

* Create free-courses-pa.md

* Add Punjabi courses to main index

README.md

@@ -155,6 +155,7 @@ This project lists books and other resources grouped by genres:
 + [Polish / polski / język polski / polszczyzna](courses/free-courses-pl.md)
 + [Portuguese (Brazil)](courses/free-courses-pt_BR.md)
 + [Portuguese (Portugal)](courses/free-courses-pt_PT.md)
++ [Punjabi / ਪੰਜਾਬੀ / پنجابی](courses/free-courses-pa.md)
 + [Romanian (Romania) / limba română / român](courses/free-courses-ro.md)
 + [Russian / Русский язык](courses/free-courses-ru.md)
 + [Sinhala / සිංහල](courses/free-courses-si.md)

courses/free-courses-pa.md

@@ -0,0 +1,9 @@
+### Index
+
+* [C](#c)
+
+
+### C
+
+* [C ਪ੍ਰੋਗਰਾਮਿੰਗ ਪੰਜਾਬੀ ਵਿੱਚ,C Programming Language in Punjabi](https://www.youtube.com/playlist?list=PLV_K8gHBuQuL8KAMgJZtBaEWUhpHVDsc4) - CJ Singh
+