bash instructions for creating jwt for github app do not work with client id but work with app id

[paololazzari]

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• [X] 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/apps/creating-github-apps/authenticating-with-a-github-app/generating-a-json-web-token-jwt-for-a-github-app#example-using-bash-to-generate-a-jwt

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

Running the script with the client id results in a token which when used throws the following error:

{
  "message": "A JSON web token could not be decoded",
  "documentation_url": "https://docs.github.com/rest",
  "status": "401"
}

Running the script with the app id results in a valid token.