Added a couple of Linux courses

Linux Journey and Linux Survival

courses/free-courses-en.md

@@ -1281,6 +1281,8 @@
 * [LPIC 2 exam guide: Linux Professional Institute Certification Study Guide](https://borosan.gitbook.io/lpic2-exam-guide) - Payam Borosan (HTML)
 * [Red Hat Enterprise Linux Technical Overview](https://www.udemy.com/course/red-hat-enterprise-linux-technical-overview/) - Red Hat Inc. (Udemy)
 * [The Linux Basics: Beginner to Sysadmin, Step by Step](https://www.youtube.com/playlist?list=PLtK75qxsQaMLZSo7KL-PmiRarU7hrpnwK)
+* [Linux Journey](https://linuxjourney.com/)
+* [Linux Survival](https://linuxsurvival.com/)
 
 
 ### Lua