Update link for Weave Net plugin docs

Signed-off-by: Ilya Dmitrichenko <errordeveloper@gmail.com>

docs/extend/plugins.md

@@ -80,7 +80,7 @@ multi-tenant micro services deployment, while providing an integration to
 physical network for non-container workload. Contiv Networking implements the
 remote driver and IPAM APIs available in Docker 1.9 onwards.
 
-* The [Weave Network Plugin](https://github.com/weaveworks/docker-plugin) creates a virtual network that connects your Docker containers - across multiple hosts or clouds and enables automatic discovery of applications. Weave networks are resilient, partition tolerant, secure and work in partially connected networks, and other adverse environments - all configured with delightful simplicity.
+* The [Weave Network Plugin](http://docs.weave.works/weave/latest_release/plugin.html) creates a virtual network that connects your Docker containers - across multiple hosts or clouds and enables automatic discovery of applications. Weave networks are resilient, partition tolerant, secure and work in partially connected networks, and other adverse environments - all configured with delightful simplicity.
 
 ## Troubleshooting a plugin