diff --git a/README.md b/README.md
index c3a5acecb..acea7810a 100755
--- a/README.md
+++ b/README.md
@@ -21,10 +21,10 @@ docker run --rm -p 1935:1935 -p 1985:1985 -p 8080:8080 ossrs/srs:3
 ```
 
 Open [http://localhost:8080/](http://localhost:8080/) to check it, then publish 
-[stream](https://github.com/ossrs/srs/blob/3.0release/trunk/doc/source.200kbps.768x320.flv) by:
+[stream](https://github.com/ossrs/srs/blob/3.0release/trunk/doc/source.flv) by:
 
 ```bash
-docker run --rm --network=host ossrs/srs:encoder ffmpeg -re -i ./doc/source.200kbps.768x320.flv \
+docker run --rm --network=host ossrs/srs:encoder ffmpeg -re -i ./doc/source.flv \
   -c copy -f flv -y rtmp://localhost/live/livestream
 ```
 
diff --git a/trunk/doc/source.flv b/trunk/doc/source.flv
new file mode 120000
index 000000000..32d9ecfc2
--- /dev/null
+++ b/trunk/doc/source.flv
@@ -0,0 +1 @@
+source.200kbps.768x320.flv
\ No newline at end of file