Pinned topics need hyperlinks

@stevebaer, since you created the pinned topic under each category, I guess this is to you.

The first item under each category, on Discourse, is a pinned topic that gives a brief overview of what the topic is all about. It would be nice if the products and/or tools mentioned contained hyperlinks to their wiki home or wherever is appropriate.

For example, the pinned topic for “Scripting” says “Topics related to RhinoScript and Python scripting.” RhinoScript should link to and Python should link to

I think this is done now.