Reminder to add JSConf to the website

[avivkeller]

          Thanks for the heads up. I am fine with having Next 10 replace JSConf for the month of May. However, after the survey is complete, I’d like to see JSConf back on the website as it’s not just an important event for the foundation, but also the node.js community.

Originally posted by @kyliewd in #7726 (comment)

This is a tracking issue to remind us to re-add JSConf when the Next-10 badge expires