diff --git a/README.md b/README.md
index bca774a..f12c10b 100644
--- a/README.md
+++ b/README.md
@@ -3,4 +3,6 @@
 This repo contains a list of utils that will probably need to be implimented for LLO.
 
 
-* llo::utils::hash_t templated class that contains unique std::uint64_t hash value for any given data. use std::hash to compute the hash. 
+* llo::utils::hash_t templated class that contains unique std::uint64_t hash value for any given data. use std::hash to compute the hash.  https://en.cppreference.com/w/cpp/utility/hash
+
+