Update free-courses-en.md (#7019)

courses/free-courses-en.md

@@ -218,20 +218,6 @@
 * [Solidity, Blockchain, and Smart Contract Course – Beginner to Expert Python Tutorial](https://www.youtube.com/watch?v=M576WGiDBdQ) - Patrick Collins (freeCodeCamp.org)
 
 
-### Bootstrap
-
-* [Bootstrap 4 Quick Start: Code Modern Responsive Websites](https://www.udemy.com/course/bootstrap-4) - Brad Hussey (Udemy)
-* [Bootstrap 5 Tutorial for Beginners](https://www.youtube.com/playlist?list=PL4cUxeGkcC9joIM91nLzd_qaH_AimmdAR) - The Net Ninja
-* [Bootstrap tutorial for beginners](https://www.youtube.com/playlist?list=PL6n9fhu94yhXd4xnk-j5FGhHjUv1LsF0V) - kudvenkat
-* [Complete Bootstrap 4 course - build 3 projects](https://www.udemy.com/course/bootstrap-4-tutorials) - Igneus Technologies (Udemy)
-* [Complete Bootstrap Crash Course \| Bootstrap 4 Tutorial](https://www.youtube.com/watch?v=ZfRn9VJzdGA) - Julio Codes
-* [Introduction to Bootstrap - A Tutorial](https://www.classcentral.com/course/edx-introduction-to-bootstrap-a-tutorial-3338) - Microsoft via edX (Class Central)
-* [Learn Bootstrap 4 for free](https://scrimba.com/learn/bootstrap4) - Neil Rowe (Scrimba)
-* [Learn Bootstrap 4 in this free 10-part course](https://www.freecodecamp.org/news/want-to-learn-bootstrap-4-heres-our-free-10-part-course-happy-easter-35c004dc45a4/) - Per Harald Borgen (Freecodecamp)
-* [Learn Bootstrap 5 and SASS by Building a Portfolio Website - Full Course](https://www.youtube.com/watch?v=iJKCj8uAHz8) - Patrick Muriungi, freeCodeCamp (YouTube)
-* [Rapid website design with Bootstrap](https://www.udemy.com/course/responsive-website-design) - Laurence Svekis (Udemy)
-
-
 ### C
 
 * [C Language Tutorial for Beginners (With Notes)](https://www.youtube.com/watch?v=_MF8L7ZxwRE) - ProgrammingWithHarry (YouTube)
@@ -494,6 +480,20 @@
 * [What the Flexbox](https://flexbox.io) - Wesbos
 
 
+#### Bootstrap
+
+* [Bootstrap 4 Quick Start: Code Modern Responsive Websites](https://www.udemy.com/course/bootstrap-4) - Brad Hussey (Udemy)
+* [Bootstrap 5 Tutorial for Beginners](https://www.youtube.com/playlist?list=PL4cUxeGkcC9joIM91nLzd_qaH_AimmdAR) - The Net Ninja
+* [Bootstrap tutorial for beginners](https://www.youtube.com/playlist?list=PL6n9fhu94yhXd4xnk-j5FGhHjUv1LsF0V) - kudvenkat
+* [Complete Bootstrap 4 course - build 3 projects](https://www.udemy.com/course/bootstrap-4-tutorials) - Igneus Technologies (Udemy)
+* [Complete Bootstrap Crash Course \| Bootstrap 4 Tutorial](https://www.youtube.com/watch?v=ZfRn9VJzdGA) - Julio Codes
+* [Introduction to Bootstrap - A Tutorial](https://www.classcentral.com/course/edx-introduction-to-bootstrap-a-tutorial-3338) - Microsoft via edX (Class Central)
+* [Learn Bootstrap 4 for free](https://scrimba.com/learn/bootstrap4) - Neil Rowe (Scrimba)
+* [Learn Bootstrap 4 in this free 10-part course](https://www.freecodecamp.org/news/want-to-learn-bootstrap-4-heres-our-free-10-part-course-happy-easter-35c004dc45a4/) - Per Harald Borgen (Freecodecamp)
+* [Learn Bootstrap 5 and SASS by Building a Portfolio Website - Full Course](https://www.youtube.com/watch?v=iJKCj8uAHz8) - Patrick Muriungi, freeCodeCamp (YouTube)
+* [Rapid website design with Bootstrap](https://www.udemy.com/course/responsive-website-design) - Laurence Svekis (Udemy)
+
+
 ### iOS
 
 * [AppCoda Complete iOS Tutorial](http://www.appcoda.com/ios-programming-course/)