Update parent pages in Research Communities with information and navigation

[shoaibsufi]

From Guido:

@juckel - what information would you like on those pages (we need a paragraph with some navigation to the leaf page(s) - but what should the text contain.

[juckel]

Ideally I would not want to populate the pages with any content other than maybe a preview/listing of the child pages. Is that possible?

[shoaibsufi]

Sure - we will do that for the next milestone - so should be done in the next week or two at most.