Add currying examples

blockexample.dee

@@ -12,4 +12,7 @@ foo <- ->
 foo() ## Inside foo but not in baz or bar
 
 add <- x -> y ->
-    return x + y
+    return x + y ## Multivariable functions by currying
+
+add(x) ## Returns a _function_
+add(x, y) ## This is equivalent to add(x)(y)