Update readme.md

readme.md

@@ -10,8 +10,11 @@ if you want to contribute write tests like this:
 import unittest
 
 #<!-- The Function the User needs to write -->
-def revstring(x):
-    return x[::-1]
+# This is importantly commented out. The UnitTest tests this if uncommented.
+# This is only here for reference
+# 
+# def revstring(x):
+#     return x[::-1]
 
 #<!-- This Test, test if the function works -->
 class TestSolution(unittest.TestCase):