diff --git a/README.md b/README.md
index bc59b8e2df05992740ffb106e5c716d9296b5da8..084c525a5d00875b2e67e6ac4a658d198f705a80 100644
--- a/README.md
+++ b/README.md
@@ -77,3 +77,6 @@ linenums = True
 #use_pygments = True
 
 ```
+
+# References
+* [Lektor-PythonMarkdown plugin](http://www.patrikdufresne.com/en/blog/2018-11-21-lektor-python-markdown/)