Update README.md

README.md

@@ -6,6 +6,9 @@ Rows with exploded mines cannot be cleared. See how far you can get!
 Left-click or tap to clear a tile. Right-click or hold to flag a mine. Click or tap a number to clear any non-flagged adjacent tiles.
 
 ## stuff to add
+
+tutorial on intro screen
+
 possibly add way to remove clicked mines (powerup/clump clicked mines together to destroy/get clicked mine to top/left of screen, etc.)
 
 animations for mine explosions