update erlang link (#4100)

Author: uglycow

README.md

@@ -223,7 +223,7 @@ Please report security vulnerability to [us](mailto:security@dubbo.incubator.apa
 * [Python](https://github.com/dubbo/dubbo-client-py)
 * [PHP](https://github.com/dubbo/dubbo-php-framework)
 * [Go](https://github.com/dubbo/dubbo-go)
-* [Erlang](https://github.com/dubboerl/dubboerl)
+* [Erlang](https://github.com/apache/incubator-dubbo-erlang)
 
 ## License