Initial data commit

Task/Binary-strings/Haskell/binary-strings-4.hs

@@ -0,0 +1,8 @@
+{- This is the most obvious way to
+append strings, using the built-in
+(++) concatenation operator
+Note the same would work to join
+any two strings (as 'variables' or
+as typed strings -}
+strAppend :: String -> String -> String
+strAppend x y = x ++ y