link, thanks on category theory page

Signed-off-by: Jim Pryor <profjim@jimpryor.net>

diff --git a/advanced_topics/monads_in_category_theory.mdwn b/advanced_topics/monads_in_category_theory.mdwn
index 87c7886..0cdb5ab 100644 (file)
--- a/advanced_topics/monads_in_category_theory.mdwn
+++ b/advanced_topics/monads_in_category_theory.mdwn
@@ -18,6 +18,10 @@ me to be a reasonable way to put the pieces together. We very much welcome
 feedback from anyone who understands these issues better, and will make
 corrections.
 
 feedback from anyone who understands these issues better, and will make
 corrections.
 

+Thanks Wren Thornton for helpful comments on these notes (not yet incorporated).
+
+[This page](http://en.wikibooks.org/wiki/Haskell/Category_theory) was a helpful starting point.
+

 
 Monoids
 -------
 
 Monoids
 -------