Update README.md

Author: giovannipbonin

README.md

@@ -18,7 +18,7 @@ Use our slack channel https://ieee-um.slack.com/ to stay in touch with updates a
 ## Table of Contents
 - [Week 0](#week-0)
 - [Week 1](#week-1)
-- [Week 2\](#week-2)
+- [Week 2](#week-2)
 - [Week 3](#week-3)
 - [Week 4](#week-4)
 - [Week 5](#week-5)