idea: reference already existing webinars from 5steps

[yarikoptic]

I think many of them already nicely align with specific sections in the 5 steps -- for visitors to be able to jump into a webinar and possibly training would be better than just go to generic project links.

On the main page I would like to see really short pointers, e.g. [Webinar: ReproIn] [Webinar: brainlife], [Training: Basics: VCS]... in corresponding spots, and then longer pages like https://www.repronim.org/5Steps/acquisition would provide a more detailed items.