Merge game-instructions into master

Author: github-learning-lab[bot]

README.md

@@ -9,6 +9,15 @@ To play the game:
 1. Click **Save**.
 1. Navigate to the URL provided in the same section.
 
+### Instructions for playing the game
+
+1. Press the space bar to begin.
+2. Use the up and down arrow keys to rotate the shape.
+3. Use the left and right arrow keys to position the shape.
+4. The goal is to create complete rows with no empty spaces.
+5. When completed, the rows will disappear.
+6. To pause the game, just press the space bar again.
+
 >> _*SUPPORTED BROWSERS*: Chrome, Firefox, Safari, Opera and IE9+_
 
 This fun open source game was cloned from: https://github.com/jakesgordon/javascript-tetris