consistency: 'type class' with a space

Author: hdgarrood

src/Control/Plus.purs

@@ -2,7 +2,7 @@ module Control.Plus where
 
 import Control.Alt
 
--- | The `Plus` type class extends the `Alt` typeclass with a value that
+-- | The `Plus` type class extends the `Alt` type class with a value that
 -- | should be the left and right identity for `(<|>)`.
 -- |
 -- | `Plus` instances should satisfy the following laws: