change language in picture

Author: zhou.ya

README.md

@@ -18,7 +18,7 @@ Data workflow of a typical data warehouse architecture
 
 Automatically synchronizing data from MySQL/MongoDB data source to ClickHouse cluster in real time(< 2min).
 
-![同步drawio](https://github.com/zeromicro/cds/raw/master/doc/%E5%90%8C%E6%AD%A5drawio.png)
+![sync](https://github.com/zeromicro/cds/raw/master/doc/sync.png)
 
 
 # start up