diff --git a/readme.md b/readme.md
index f4d9716..7cab933 100644
--- a/readme.md
+++ b/readme.md
@@ -22,3 +22,7 @@ example docker-compose config for raindrop api.
     volumes:
       - ./data/raindrop-api:/config
 ```
+
+# credits
+
+thanks to [this repo](https://github.com/douglasmakey/oauth2-example) for example implementation of oauth2.