Update README.md

Added How to Play and Score messages

README.md

@@ -14,3 +14,16 @@
 
 ## Let Ron Cooke
 Let Ron Cooke is a single-player student simulator, where the player controls Ron, and takes him through a week at University. Will he survive? Will he pass his exams? Will he get alcohol poisoning? Who knows!
+
+## How to Play
+Movement is achieved using `WASD` or the arrow keys.
+
+You can speed up the character using `CTRL`.
+
+Activities can be interacted with using `E`.
+
+There are a few hidden activities around, can you find them?
+
+## Score
+
+In the current iteration of the game the score and associated grade is printed to terminal.