Merge pull request docker#4289 from dvdksn/docs/update-link-overlay-d…

…river

docs: update link location for the overlay driver

docs/reference/commandline/service_create.md

@@ -916,7 +916,7 @@ $ docker service create \
 The swarm extends my-network to each node running the service.
 
 Containers on the same network can access each other using
-[service discovery](https://docs.docker.com/network/overlay/#container-discovery).
+[service discovery](https://docs.docker.com/network/drivers/overlay/#container-discovery).
 
 Long form syntax of `--network` allows to specify list of aliases and driver options:
 `--network name=my-network,alias=web1,driver-opt=field1=value1`