chat-view: add docs for %create action
/- *rw-security
|%
+$ chat-view-action
- $% $: %create
+ $% :: %create: create a new chat
+ ::
+ :: if :app-path and :group-path are different, :members must be empty,
+ :: as the :group-path is assumed to exist.
+ :: if :app-path and :group-path are identical, and the :group-path
+ :: doesn't yet exist, will create a new group with :members.
+ ::
+ $: %create
title=@t
description=@t
app-path=path
