update labs/readme

Author: rambasnet

labs/README.md

@@ -2,6 +2,6 @@
 
 - labs have been moved to its own repository at: [https://github.com/rambasnet/Python-Fundamentals-Lab](https://github.com/rambasnet/Python-Fundamentals-Lab)
 - separating should make it easier to work with GitHub Classroom
-- in the lab repo, see `readonly_lab`s which is supposed to readonly for students
+- in the lab repo, see `readonly_lab` which is supposed to readonly for students
 - they can create their own `labs` folder in the repo and work on each lab
 - having a read only copy provides a good reference in case students accidently change part of the code they're not supposed to!