diff --git a/README.md b/README.md
index 4545831fec828..79e53d7cfe4dd 100644
--- a/README.md
+++ b/README.md
@@ -192,6 +192,11 @@ datasources:
     basicAuthPassword: test_password
 ```
 
+Make sure to adjust the url and authentication to your needs, the url should be:
+- `http://localhost:3100` when run Loki locally
+- `http://loki:3100` when run Loki with docker or docker-compose
+basicAuthUser and basicAuthPassword should same as your Grafana setting.
+
 ## Further Reading
 
 - The original [design doc](https://docs.google.com/document/d/11tjK_lvp1-SVsFZjgOTr1vV3-q6vBAsZYIQ5ZeYBkyM/view) for Loki is a good source for discussion of the motivation and design decisions.