Add windows workaround link

week1/02-grading-and-submission.md

@@ -16,6 +16,8 @@ Each assignment is shipped with two sets of tests:
     ```shell
     runGradingTests
     ```
+    **[Note: this command is currently broken on Windows, click here for the
+    work around](https://gitlab.epfl.ch/lamp/cs-210-functional-programming-2019/issues/9#note_45529)**
     Your grade is determined by the number of these tests that pass, see the
     next section to see how to actually get a grade.