Display posts on admin page

I knew someone would ask that.
Here is what I want to do.
I use wordpress as a CMS and when I build a site for someone I like to provide written documentation so the client can reference it when they update or make other changes with their site.
We normally provide printed documentation but I would like to tie the documentation into the wordpress admin instead.
The easy way to do it would be to create a page that displays the equivalent of the printed version in HTML.

I thought it would be better if this documentation could be split into categories and posts so it could be part of wordpress and searchable.

So I need a page within the /wp-admin/ folder that displays the posts within and under the documentation category. none of these posts would display on the website anywhere, only in the wp-admin area.