updated README

diff --git a/README b/README
index 2605b5d1e1c79df0d90b70b1f6a8f0efdb161ac7..520ab65ddccc58d1749e19b216c29d4416c9961c 100644 (file)
--- a/README
+++ b/README
@@ -26,7 +26,8 @@ and the pygame library.
    To run the game, click on "molpyup.py"
    See <http://forums.xkcd.com/viewtopic.php?p=4331549#p4331549> for details.
 
-In the game, use the left and right arrow keys to navigate.
+In the game, use the left and right arrow keys to navigate,
+use + and - to speed up / slow down.
 
 Thanks to NoMouse and taixzo for the installation instructions!
 Thanks to everyone who reported mustard and kept me up with the Present!