Update modules/ROOT/pages/_partials/howto/how-to-create-roles.adoc

Co-authored-by: Tor Colvin <tor.colvin@couchbase.com>

Author: iamfortune

modules/ROOT/pages/_partials/howto/how-to-create-roles.adoc

@@ -47,7 +47,7 @@ Create a new role using the {rest-api-admin-role-post--xref} endpoint.
 ----
 $ curl -vX POST "http://localhost:4985/mydatabase/_roles/" -H
 "accept: application/json" -H "Content-Type: application/json" -d
-'{"name": "Edge1", "collection_access": {"scopename": {"collectionname": {"admin_channels": ["channel1", "channel3"]]}}}}' // <.>
+'{"name": "Edge1", "collection_access": {"scopename": {"collectionname": {"admin_channels": ["channel1", "channel3"]}}}}' // <.>
 ----
 <.> Here we add the Edge1 role which grants channel access to channel1 and channel3 in scope scopename and collection collectionname.