Landing page for DEI Celebration Events

[lbianchi-lbl]

The idea is to create a single webpage in the DEI section of the US-RSE website containing all the key information about DEI Celebration Events, with the goal of making it simpler for people who might be interested in getting involved to see what we've done already, and possibly get in touch if they want to be involved.

Some ideas for the content:

• Collect past initiatives/events
• Add some kind of "Get involved" contact info (e.g. simple web form)