Adding The Finite String newsletter

Following a [discussion on Twitter](https://twitter.com/haldaume3/status/1465372230171467796) it seems that it is very useful to archive the Finite String Newsletter that used to be sent out by ACL. The newsletter [used to be a bit more prominent on the old Anthology](https://www.aclweb.org/old_anthology/docs/fs.html) but on the current one it's hard to find. The problem is that the collection in the Anthology is incomplete.

I want to collect these newsletters and add them to the Anthology. I'd be happy to add all relevant metadata and produce an XML file that could be ingested to the Anthology.

I have three questions:
1. Do you agree that missing items should be added?
2. What should the XML look like? What metadata should be included?
3. How to resolve the issue that the newsletter archive is hard to find?