Added a new course on Web Dev in Hindi (#7482)

* Update free-courses-hi.md

* Update free-courses-hi.md

* fix: escape pipes from resource titles

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

courses/free-courses-hi.md

@@ -171,6 +171,7 @@
 ### HTML and CSS
 
 * [CSS Tutorial in Hindi \| Complete CSS Course For Beginners to Advanced \| Step By Step Tutorial](https://www.youtube.com/watch?v=WyxzAU3p8CE) - Vishwajeet Kumar (Tech Gun)
+* [Free Web Development Course For School Students (Grade 5 - 10) \| Certified Course By Coding Blocks Junior \| Learn HTML, CSS, Javascript](https://www.youtube.com/playlist?list=PLhLbJ9UoJCvsCXqP9yAOZpzXHhWkLBXdw) - Coding Blocks Junior
 * [HTML CSS & Browser APIs](https://www.youtube.com/playlist?list=PL-Jc9J83PIiHU9RkY9sfh3G64-bd0ptvC) - Pepcoding
 * [HTML Tutorial in Hindi \| Complete HTML Course For Beginners to Advanced](https://www.youtube.com/watch?v=QXPWs00RD3A) - Vishwajeet Kumar (Tech Gun)
 * [Web Development Course](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3H6c9OGXb5_6wcc1Mca52n) - Apna College