Moved alternate jack-o-lantern throw key to enter. No more conflicts with volume keys.

files/instructions.txt

@@ -18,7 +18,7 @@ s or down arrow: Duck.
 tab or capslock: Toggle run lock.
 Control: Attack.
 Space or shift: Hold to run if runlock is disabled. If run lock is enabled, hold to walk.
-f or alt: Throw jack O'lantern.
+f or enter: Throw jack O'lantern.
 c: Check bone dust.
 e: Check currently wielded weapon.
 h: Check health.