[update] ad

README.md

@@ -237,6 +237,6 @@ PROXY_GETTER = [
 
    [release notes](https://github.com/jhao104/proxy_pool/blob/master/doc/release_notes.md)
 
-### [AD](https://tracking.gitads.io/?campaign=gitads&repo=proxy_pool&redirect=gitads.io)
+### [AD](https://tracking.gitads.io/?repo=proxy_pool)
 
-[![AD](https://raw.githubusercontent.com/jhao104/proxy_pool/master/doc/720X300-2.png)](https://tracking.gitads.io/?campaign=gitads&repo=testrepo&redirect=gitads.io)
+[![AD](https://images.gitads.io/proxy_pool)](https://tracking.gitads.io/?repo=proxy_pool)