(Re?)create RSS feed & add to DH Now

[amandavisconti]

Unless there's already a feed (didn't see one at /feed or /rss)

DH Now asked for DH feeds to be readded using this form: https://docs.google.com/forms/d/e/1FAIpQLScaGfzuc3CKs3g7ZWOZ829B_WCzKIgrgXMLDJXLJQJ9Bc3Ovg/viewform