Minor corrections.
Minor corrections.

BigRoss/learntris,TylerLau/learntris,Shamash2014/spice_and_html,Shamash2014/spice_and_html,lochanaeg/learntris,bschaef14/learntris,LearnProgramming/learntris,Larsharaldjoh/Tetris,BigRoss/learntris,bschaef14/learntris,nbgraham/learntris,WhitmanH/learntris,DTSCode/learntris-haskell,TylerLau/learntris,mosegontar/learntris,Shamash2014/spice_and_html,geugon/learntris,tangentstorm/learntris,bschaef14/learntris