Update and rename free-courses-en.md to Add Hyperksill free-courses-en.md (#11711)

Hyperskill is an educational platform designed to help individuals learn programming and develop practical skills through real-world projects. Powered by JetBrains, Hyperskill offers a comprehensive, university-level education with a focus on hands-on learning. They offer free plans (Access to all courses) and premium plans (Access to everything including certificates and extra hands on projects)

courses/free-courses-en.md → courses/Add Hyperksill free-courses-en.md

@@ -128,6 +128,7 @@
 * [edX](https://www.edx.org)
 * [freeCodeCamp](https://www.freecodecamp.org)
 * [FutureLearn](https://www.futurelearn.com)
+* [Hyperskill](https://hyperskill.org)
 * [IITBombayX (IITBX)](https://www.iitbombayx.in)
 * [Khan Academy](https://www.khanacademy.org)
 * [LabEx](https://labex.io)