Update end_of_year_review.md

ericagreene · ericagreene · commit 9187cca712c0 · 2014-06-16T08:22:42.000-04:00
diff --git a/Worksheets/end_of_year_review.md b/Worksheets/end_of_year_review.md
@@ -7,6 +7,7 @@
 * You can use Python to answer the questions.
 * **Please work on the problems individually.** 
 
+**You can test your Python code online here:** http://repl.it/
 
 ## Question 1
 
