Update README.md

week-01/README.md

 # Week 1: Introduction
 
-> This week, we're introducing the course, and GitLab, where the course materials will be stored.
+> This week, we're introducing the course, and GitLab, where the course materials will be stored. We'll also do a first basic exercise in GitLab concerning your reflections on the Venice Time Machine.
 
 ## *Venice Time Machine*