Start admin workflow management guide

docs/editor_manual/administrator_tasks/index.rst

@@ -7,4 +7,5 @@ This section of the guide documents how to perform common tasks as an administra
    :maxdepth: 3
 
    managing_users
+   managing_workflows
    promoted_search_results

docs/editor_manual/administrator_tasks/managing_workflows.rst

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+Managing Workflows
+==================
+
+Workflows allow you to configure how moderation works on your site. Workflows are sequences of tasks, all of which must be approved
+before the workflow completes (by default, this results in the publication of the page, but depends on your site settings TODO: add settings link).
+
+The workflow management interface is accessed via the `Workflows` item in the `Settings` submenu, found in the left menu bar.
+
+TODO: add screenshot
+
+In this interface you can see all of the workflows on your site, and the order of tasks in each. You can click on a workflow to edit it or to assign it
+to part of the page tree, or use the `Add a workflow` button to create a new workflow.
+
+
+Editing workflows
+_________________
+
+
+TODO: add screenshot
+
+Under `Tasks`, you can add, remove, or reorder tasks in a workflow. You may also disable the workflow, which will cancel all pages currently
+in moderation on this workflow, and prevent others from starting it.
+
+Under `Pages`, you can see a list of the pages to which the workflow has been assigned: any child pages will also have the same workflow, 
+so if a workflow is assigned to the root page, it becomes the default workflow. You may remove it from pages using the `Remove` button to
+the right of each entry, or assign it to a page using the `Add to page` button.
+
+
+Creating and editing tasks
+__________________________
+
+TODO: add screenshot
+
+In the tasks interface, accessible via the `Tasks` button in the upper right corner of the workflow management interface, you can see a list of the tasks
+currently available. Similarly to workflows, you can click an existing task to edit it, or the `Add a task` button to create a new task.
+
+When creating a task, if you have multiple task types available, these will be offered as options. By default, only `group approval tasks` are available.
+Creating a `group approval task`, you will be able to select one or multiple groups: members of any of these, as well as administrators, will be able to
+approve or reject moderation for this task.
+
+When editing a task, you may find that some fields - including the groups in a `group approval task` are uneditable. This is to ensure workflow history
+remains consistent - if you find yourself needing to change the group, it is recommended that you disable the old task, and create a new one with the groups
+you need. Disabling a task will cause any pages currently in moderation on that task to skip to the next task.