diff --git a/README.md b/README.md
index 86c5c23..3593be2 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,10 @@
 # gym-random-walk
 
-A minimal example of a custom environment for https://github.com/openai/gym, based on an example in the recordings of David Silver's lectures on Reinforcement Learning at UCL.
+A minimal example of a custom environment for https://github.com/openai/gym.
+
+What the environment provides is not that important; this is meant to show how what you need to do to create your own environments for openai/gym.
+
+For concreteness I used an example in the recordings of David Silver's lectures on Reinforcement Learning at UCL.
 
 (0) - A - B - C - D - E - (+1)