Added New Courses and fixed a typo (#5815)

* Added New Courses

Added New Courses of Java, Data Structures and Web Development. These Courses also provide  animated content for better understanding of concepts and are recently updated.

* Corrected a Typo

* Added Blank Lines

* Updated

* Update free-courses-hi.md

courses/free-courses-hi.md

@@ -6,6 +6,7 @@
 * [Data Structures](#data-structures)
 * [DevOps](#devops)
 * [Git and GitHub](#git-and-github)
+* [HTML and CSS](#html-and-css)
 * [Java](#java)
 * [Javascript](#javascript)
   * [Next.js](#nextjs)
@@ -42,6 +43,7 @@
 
 * [All Data Structure Concepts \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJNztGGoQC-59UhSwIaiIW3) - Saurabh Shukla
 * [All Sorting algorithms and Programs \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefJU-Sj__mljvrmJHZVKWbEm) - Saurabh Shukla
+* [C++ Full Course | C++ Tutorial | Data Structures & Algorithms](https://www.youtube.com/playlist?list=PLfqMhTWNBTe0b2nM6JHVCnAkhQRGiZMSJ) - Apna College
 * [Data Structure Programs \| Hindi](https://www.youtube.com/playlist?list=PLsFNQxKNzefK_DAUwnQwBizOmcY7aDLoY) - Saurabh Shukla
 * [Data Structures and Algorithms Course in Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ahIappRPN0MCAgtOu3lQjQi) - CodeWithHarry
 * [Java + Data Structures + Algorithms](https://www.youtube.com/playlist?list=PLKKfKV1b9e8ps6dD3QA5KFfHdiWj9cB1s) - Apni Kaksha
@@ -49,7 +51,8 @@
 
 ### DevOps
 
-*[DevOps Training Videos in Hindi](https://www.youtube.com/playlist?list=PLQbQOmlGYH3sxlq9ugoq1ipNFP7tus5Gd) - edureka! Hindi
+* [DevOps Training Videos in Hindi](https://www.youtube.com/playlist?list=PLQbQOmlGYH3sxlq9ugoq1ipNFP7tus5Gd) - edureka! Hindi
+
 
 ### Git and GitHub
 
@@ -57,9 +60,15 @@
 * [Git & GitHub Tutorial For Beginners In Hindi](https://www.youtube.com/watch?v=gwWKnnCMQ5c) - CodeWithHarry
 
 
-### Java
+### HTML and CSS
+
+* [Web Development Course](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3H6c9OGXb5_6wcc1Mca52n) - Apna College
+
+
+### Java 
 
 * [Java + DS + Algorithms](https://www.youtube.com/playlist?list=PLKKfKV1b9e8ps6dD3QA5KFfHdiWj9cB1s) - Apni Kaksha (Anuj)
+* [Java + DSA](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3LtFWcvwpqTkUSlB32kJop) - Apna College
 * [Java Tutorials For Beginners In Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agS67Uits0UnJyrYiXhDS6q) - Harry
 * [Spring Boot Tutorial For Beginners (in Hindi)](https://www.youtube.com/playlist?list=PL5mjp3QjkuoLPS-L28yKCKyzCMX8WRVno) - ProgRank
 * [The complete Java tutorial \| Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9agS67Uits0UnJyrYiXhDS6q) - Harry
@@ -70,6 +79,8 @@
 * [JavaScript Tutorial \| Hindi](https://www.youtube.com/playlist?list=PLu0W_9lII9ajyk081To1Cbt2eI5913SsL) - Harry
 * [JavaScript Tutorial for Beginners (In Hindi)](https://www.youtube.com/playlist?list=PLwGdqUZWnOp1hqyT6h7pY0RlXIIGlE5U0) - Vinod Bahadur Thapa (Thapa Technical)
 * [RxJS Series (In Hindi)](https://youtube.com/playlist?list=PLLhsXdvz0qjI68a8tLUUMyXmNhl608mcn) - UX Trendz
+* [Web Development Course](https://www.youtube.com/playlist?list=PLfqMhTWNBTe3H6c9OGXb5_6wcc1Mca52n) - Apna College
+
 
 <h4 id="nextjs">Next.js</h4>