deletions | additions       diff --git a/The_Basics_Linear_algebra_https__.md b/The_Basics_Linear_algebra_https__.md  index 9a4c456..85ff9d1 100644  --- a/The_Basics_Linear_algebra_https__.md  +++ b/The_Basics_Linear_algebra_https__.md 
...
# The Basics  * Linear algebra: https://www.khanacademy.org/math/linear-algebra   This is a prerequisite for machine learning.  
...