Hindi/ हिंदी Language Added and some of its resources (#3805)

* Hindi language section added

* Hindi Free Courses Added

* Update free-programming-books-hn.md

* removed empty files
Co-Authored-By: NDwarkesh Kaswala <71209082+dwarcash@users.noreply.github.com>

* renamed hn to hi for hindi as per ISO
Co-Authored-By: NDwarkesh Kaswala <71209082+dwarcash@users.noreply.github.com>

* Hindi / हिंद language added
Co-Authored-By: NDwarkesh Kaswala <71209082+dwarcash@users.noreply.github.com>

* playlists removed and added one single video links
Co-Authored-By: NDwarkesh Kaswala <71209082+dwarcash@users.noreply.github.com>

* "playlist" links added and "full course in one video" links added
Co-Authored-By: NDwarkesh Kaswala <71209082+dwarcash@users.noreply.github.com>
Co-authored-by: NDwarkesh Kaswala <dwarkeshkaswala777@gmail.com>

README.md

@@ -66,6 +66,7 @@ Please read [CONTRIBUTING](/CONTRIBUTING.md). If you're new to GitHub, [welcome]
 + [English](free-courses-en.md)
 + [Finnish](free-courses-fi.md)
 + [German / Deutsch](free-courses-de.md)
++ [Hindi / हिंदी](free-courses-hi.md)
 + [Indonesian / Bahasa Indonesia](free-courses-id.md)
 + [Italian / italiano](free-courses-it.md)
 + [Korean / 한국어 [韓國語]](free-courses-ko.md)

free-courses-hi.md

+### Index
+
+* [C](#C)
+* [C++](#C++)
+
+
+### C
+
+* [All C Concepts | Hindi](https://www.youtube.com/playlist?list=PL7ersPsTyYt1d8g5qaxbE6sjWDzs4D_1v) - Saurabh Shukla
+
+
+### C++
+
+* [The Complete C++ Course | Hindi](https://www.youtube.com/playlist?list=PLLYz8uHU480j37APNXBdPz7YzAi4XlQUF) - Saurabh Shukla
+
+
+### Python
+
+* [Python Tutorial For Beginners In Hindi (With Notes)](https://www.youtube.com/watch?v=gfDE2a7MKjA) - Harry
+
+
+### Javascript
+
+* [JavaScript Tutorial In Hindi](https://www.youtube.com/watch?v=hKB-YGF14SY) - Harry