Introducing an online tool to run Linguist on public repos

[DecimalTurn]

I've created a tool for people to use when they want to run Linguist on a public repo and see the full breakdown without having to create a codespace or install Linguist locally.

It's located here: https://github.com/DecimalTurn/Linguist-Demo

I'd be happy to get some feedback.
And perhaps that's something that could be mentioned in Troubleshooting.md.