lib/funkr/categories/monoid.rb in funkr-0.0.23 vs lib/funkr/categories/monoid.rb in funkr-0.0.24

@@ -1,8 +1,9 @@
 module Funkr
   module Categories
+    # Monoids are types that can be added and have a zero element.
     module Monoid
-      
+
       def mplus
         raise "Monoid#mplus not implemented"
       end
       
       module ClassMethods