Added two Courses (C programming and Github contribution) (#7342)

* c language tutorial added

* Update free-courses-hi.md

* Update free-courses-hi.md

* tutorial to contribute in github

* Update free-courses-hi.md

* Update free-courses-hi.md

* Update free-courses-hi.md

* Update free-courses-hi.md

* Update free-courses-hi.md

* fix: remove YT video too short

* Update courses/free-courses-hi.md

Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

* fix: wrap creators delimiter between spaces

* fix: use a Databases category to fit better the DBMS YT playlist

* lint: alphabetize sections

* DBMS course added

* Update free-courses-hi.md

* DBMS Course added

* lint: fix format warnings

Co-authored-by: David Ordás <3125580+davorpa@users.noreply.github.com>

courses/free-courses-hi.md

@@ -98,6 +98,7 @@
 ### <a id="c"></a>C
 
 * [All C Concepts \| Hindi](https://www.youtube.com/playlist?list=PL7ersPsTyYt1d8g5qaxbE6sjWDzs4D_1v) - Saurabh Shukla
+* [C Language Tutorial for Beginners (with Notes & Practice Questions)](https://www.youtube.com/watch?v=irqbmMNs2Bo) - Apna College
 * [C Language Tutorial For Beginners In Hindi (With Notes)](https://www.youtube.com/watch?v=ZSPZob_1TOk) - CodeWithHarry
 * [C Language Tutorials In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9aiXlHcLx-mDH1Qul38wD3aR) - CodeWithHarry
 * [C Programming Tutorials](https://www.youtube.com/playlist?list=PLiOa6ike4WAHH3HyPUu6pUG-r0LApvW-l) - Vikas Pandey, easytuts4you
@@ -159,8 +160,8 @@
 
 ### Databases
 
-* [DBMS (Database Management System)Complete Playlist](https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y) - Gate Smashers
-* [DBMS Placements Series 2022](https://www.youtube.com/playlist?list=PLDzeHZWIZsTpukecmA2p5rhHM14bl2dHU) - CodeHelp by Babbar
+* [DBMS (Database Management system) Complete Playlist](https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y) - Gate Smashers
+* [DBMS Placements Series 2022](https://www.youtube.com/playlist?list=PLDzeHZWIZsTpukecmA2p5rhHM14bl2dHU) - CodeHelp - by Babbar
 
 
 ### DevOps