about-git-subtree-merges still uses git URLs for the example remotes

[matta]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/get-started/using-git/about-git-subtree-merges

What part(s) of the article would you like to see updated?

Suggest using https://github.com/octocat/Spoon-Knife.git instead of [email protected]:octocat/Spoon-Knife.git in the example commands.

Additional information

No response

[welcome]

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