Feature Request: Add area to add a description on the series Page.

[kimwhite]

Series Page will show Post Name and Availablity but would benefit from a way to add a description to this list.

Example

[kimcoleman]

Would you think this could be the WordPress-generate post "excerpt" (if we show them to non-members? I don't think we'd add a new field / way to set a short description per item. But pulling in the core WP excerpt sounds interesting and we could use a filter to do so.