Update README.md

README.md

@@ -26,4 +26,4 @@ To try the agent, user needs to import the ParameterisedPolicy class from the Ag
 Training progress:
 ![training](training_graph.jpg)
 
-Numbers on X axis are average over 40 episodes, each lasting for about 500 episodes on average. So in total the agent was trained over about 5e6 timesteps.
+Numbers on X axis are average over 40 episodes, each lasting for about 500 timesteps on average. So in total the agent was trained over about 5e6 timesteps.