Add deadline warning

week1/03-homework1.md

@@ -12,6 +12,7 @@ cd cs210-recfun
 You can always refer to:
   * [the example guide](https://gitlab.epfl.ch/lamp/cs-210-functional-programming-2019/blob/master/week1/01-example.md) on the development workflow.
   * [this guide](https://gitlab.epfl.ch/lamp/cs-210-functional-programming-2019/blob/master/week1/02-grading-and-submission.md) for details on the submission system.
+    **Make sure to submit your assignment before the deadline written in [README.md](/README.md)**
 
 # Exercise 1: Pascal's Triangle