Fix charString export

Author: garyb

README.md

@@ -13,10 +13,10 @@ newtype Char
 
 A unicode character.
 
-#### `charString`
+#### `toString`
 
 ``` purescript
-charString :: Char -> String
+toString :: Char -> String
 ```
 
 Returns the string of length `1` containing only the given character.
@@ -59,6 +59,7 @@ Characters can be compared with `compare`, `>`, `>=`, `<` and `<=`.
 instance boundedChar :: Bounded Char
 ```
 
+Characters fall within the Unicode range.
 
 #### `showChar`
 

src/Data/Char/Char.purs

@@ -1,7 +1,7 @@
 -- | A type and functions for single characters.
 module Data.Char
   ( Char()
-  , charString
+  , toString
   , fromCharCode
   , toCharCode
   ) where