diff --git a/README.org b/README.org
index f4c4657..bd6f1a4 100644
--- a/README.org
+++ b/README.org
@@ -4329,6 +4329,9 @@ git clone git@github.com:ageldama/cl-state-machine.git
 :CUSTOM_ID: sec:lisp-custom-font-locking
 :END:
 
+This section implements the code described in the [[https://www.n16f.net/blog/custom-font-lock-configuration-in-emacs/][Emacs Common Lisp Font Locking]]
+post.
+
 *** [[https://www.n16f.net/blog/custom-font-lock-configuration-in-emacs/][Initialize Common Lisp custom font locking]]
 :PROPERTIES:
 :CUSTOM_ID: sec:cl-custom-font-locking-start