Hi everyone,
I've build a small website with nusenu's help to generate the Tor ContactInfo field value based on nusenu's specification: https://github.com/nusenu/ContactInfo-Information-Sharing-Specification
Check out the website here: https://torcontactinfogenerator.netlify.com/
The code is in Github (there is a link to the repo at the end of the website). Feel free to send pull requests for changes/fixes/updates.
Thanks, Eran