diff --git a/README.md b/README.md
index ecf1839..8a46dc7 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ hi all,
 
 Lets create test vectors for ed25519 like [RFC7748 page 12](https://datatracker.ietf.org/doc/html/rfc7748#page-13).
 
-One, thousand and million iteration results from [python](https://ed25519.cr.yp.to/software.html) below:
+One, thousand and million iteration results from [python](https://ed25519.cr.yp.to/software.html) reference implementation below:
 ```
 HERE
 ```