README: Mention Python 3.3 dependency

diff --git a/README b/README
index c2f4264c8cbb8736eda9d6e9826f58bbe13fa21b..a204f4c1d84b3551ded4d9e7bbf7a48ba7433b50 100644 (file)
--- a/README
+++ b/README
@@ -3,3 +3,5 @@ Break learning up into small task-based tests for focused study.
 Tests can be defined with prerequites so a student wishing to learn a
 higher level task, but out of their depth with the task itself, can
 easily go back through the basics.
+
+Quizzer requires Python ≥ 3.3.