add quote by Lars Wirzenius

README.md

@@ -5,6 +5,14 @@
 - You'll have to type that password many many times this week: choose wisely!
 - We will use the [exercise](exercise.md) in the repo for the rest of the lecture
 
+## A cautionary quote
+
+> My first instinct is to sell all my computers, fake my own death, move to another planet, and reinvent computing from scratch, rather than try to understand Git.
+> 
+>    I rarely actually do that, mind you. But the urge is there.
+
+— Lars Wirzenius (Linux kernel developer)
+
 ## Warm-Up
 - how to start a repo from scratch?
     - `git init` local method