Replace link to the I-D to by a link to the RFC

README.md

diff --git a/README.md b/README.md
index 0005924..a4f5f14 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@
 
 
 ## References
-http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07
+https://tools.ietf.org/html/rfc6901
 
 ### Note
 The 4.Evaluation part of the previous reference, starting with 'If the currently referenced value is a JSON array, the reference token MUST contain either...' is not implemented.