Workshop overview page should list all learning objectives or key points

[ErinBecker]

This probably belongs more in the styles repo, but starting a conversation first here to see if we can mock up a solution before taking to the larger team. When I have conversations with institutions about hosting a DC workshop, they often want an overview of the workshops, in terms of what skills will be learned. I usually provide the blurb from our curricula page, but it would be cool to have a built in feature in the lesson-template for DC workshops that pulls keypoints and/or learning objectives from all of the lessons in that curriculum to, e.g, the reference page. We have this functionality for individual lessons, but not for curricula. The reference page for this repo is currently a FIXME. I can look into setting up a pilot test of this feature for this repo and then introduce to other DC Maintainers to see if this is something folks would be interested in having across the board.

Pinging @zkamvar and @fmichonneau as fellow Curriculum Team members.

[sk-sahu]

@ErinBecker Is the issue #88 accommodate some points in this issue?