Merge pull request ossu#309 from Heasummn/master

Added a Linear Algebra Course to Extras

Author: ericdouglas

extras/courses.md

@@ -124,6 +124,9 @@ Courses | Duration | Effort
 ### Cloud Computing
 
 ### Math (Linear Algebra)
+Courses | Duration | Effort
+:-- | :--: | :--:
+[Linear Algebra - Foundations to Frontiers (LAFF)] (https://www.edx.org/course/linear-algebra-foundations-frontiers-utaustinx-ut-5-03x)| 15 weeks | 8 hours/week
 
 ### Cryptography