text: Title: [Feature request] Recognise and offer fixes for missing `git clone` when given a url or SSH ending in .git
  Body: It would be neat if a fix was required when I pasted a `git` URL intending to clone it, but forgot to add the `git clone` to the start. There's a fix for when `git clone` is present twice, so I think it's reasonable to have one for when it's never present.
  
  If someone can point me to a getting started page so I can find my way around the project and learn the basics, I'm happy to create an implementation and PR for this myself.
  