fix godoc link in clientv3 readme
@@ -81,7 +81,7 @@ The etcd client optionally exposes RPC metrics through [go-grpc-prometheus](http
## Namespacing
-The [namespace](https://godoc.org/go.etcd.io/etcd/clientv3/namespace) package provides `clientv3` interface wrappers to transparently isolate client requests to a user-defined prefix.
+The [namespace](https://godoc.org/go.etcd.io/etcd/client/v3/namespace) package provides `clientv3` interface wrappers to transparently isolate client requests to a user-defined prefix.
## Request size limit
