To create a Document posts go to Document > Add New, enter title, post content and click Publish button to save.
If your theme support post formats you can also set document post format.
Document plugin can display Document posts grouped into categories, create categories under Document > Categories and assign Document post to these categories. Use a shortcode to display document posts on any page, post or custom post type. Easiest way is to use shortcode generator on post editor:
Reorder Document Posts and Categories
Navigate to PressApps > Document and enable “Reorder” setting.
Now you can reorder document posts and categories using drag and drop under Documents > All Documents and Documents > Categories.
Navigate to PressApps > Document. You can enable document post voting feature at the bottom of each post. Voting can be limited to logged in users only or public.