Fix typo in haskell example
Fix typo in haskell example

To make literal behaving like regular function sorround operator with parens. To get opposite sorround function with backticks.
MasterDuke17/doc,tbrowder/doc,MasterDuke17/doc,MasterDuke17/doc,tbrowder/doc,tbrowder/doc,tbrowder/doc,MasterDuke17/doc