docs: add example for multiple networks

README.md

@@ -270,6 +270,12 @@ Set the network to attach after the service container is started:
 dokku postgres:set lollipop post-create-network custom-network
 ```
 
+Set multiple networks:
+
+```shell
+dokku postgres:set lollipop post-create-network custom-network,other-network
+```
+
 Unset the post-create-network value:
 
 ```shell

subcommands/set

@@ -9,6 +9,8 @@ source "$(cd "$(dirname "$(dirname "${BASH_SOURCE[0]}")")" && pwd)/common-functi
 service-set-cmd() {
   #E set the network to attach after the service container is started
   #E dokku $PLUGIN_COMMAND_PREFIX:set lollipop post-create-network custom-network
+  #E set multiple networks
+  #E dokku $PLUGIN_COMMAND_PREFIX:set lollipop post-create-network custom-network,other-network
   #E unset the post-create-network value
   #E dokku $PLUGIN_COMMAND_PREFIX:set lollipop post-create-network
   #A service, service to run command against