Formatting changes to make 1.12.x ref docs buildable in Jekyll

Signed-off-by: Misty Stanley-Jones <misty@docker.com>

docs/reference/commandline/network_create.md

@@ -1,14 +1,11 @@
-<!--[metadata]>
-+++
-title = "network create"
-description = "The network create command description and usage"
-keywords = ["network, create"]
-[menu.main]
-parent = "smn_cli"
-+++
-<![end-metadata]-->
-
-# network create
+---
+redirect_from:
+  - /reference/commandline/network_create/
+description: The network create command description and usage
+keywords:
+- network, create
+title: docker network create
+---
 
 ```markdown
 Usage:	docker network create [OPTIONS] NETWORK
@@ -133,7 +130,7 @@ support it you can create multiple subnetworks.
 $ docker network create -d overlay \
   --subnet=192.168.0.0/16 \
   --subnet=192.170.0.0/16 \
-  --gateway=192.168.0.100 \ 
+  --gateway=192.168.0.100 \
   --gateway=192.170.0.100 \
   --ip-range=192.168.1.0/24 \
   --aux-address="my-router=192.168.1.5" --aux-address="my-switch=192.168.1.6" \