Upterm is deprecated

[Anton Chikin]

According to it's repo README https://github.com/railsware/upterm is deprecated. Could be a good idea to mention that in a list.

[Carlos]

Thanks! @achikin I added deprecated to it. But you mean adding like a deprecated list?

[Anton Chikin]

@cdleon Thank you! I meant exactly what you did :) Btw, there is another Upterm mention inside the MacOS section.

[Carlos]

Done. thanks! Closing issue 🙂