Specify the same port in the loopback OAuth redirect_url

[AlexPykavy]

Why:

Use the same port for the loopback OAuth redirect_url both in the description and code block to avoid confusion.

What's being changed (if available, include any code snippets, screenshots, or gifs):

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• I have reviewed my changes in staging, available via the View deployment link in this PR's timeline.

  • For content changes, you will also see an automatically generated comment with links directly to pages you've modified. The comment won't appear if your PR only edits files in the data directory.

• For content changes, I have completed the self-review checklist.

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[github-actions]

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The table contains an overview of files in the content directory that have been changed in this pull request. It's provided to make it easy to review your changes on the staging site. Please note that changes to the data directory will not show up in this table.

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Content directory changes

You may find it useful to copy this table into the pull request summary. There you can edit it to share links to important articles or changes and to give a high-level overview of how the changes in your pull request support the overall goals of the pull request.

Source	Preview	Production	What Changed
apps/oauth-apps/building-oauth-apps/authorizing-oauth-apps.md	fpt ghec ghes@ 3.10 3.9 3.8 3.7 3.6 ghae	fpt ghec ghes@ 3.10 3.9 3.8 3.7 3.6 ghae

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server
ghae: GitHub AE

[cmwilson21]

@AlexPykavy Thanks for submitting a PR! Would you mind filling out the "Why" section with a short description of the change you are making? That'll make it easier for review. Then I'll get it triaged 👍

[AlexPykavy]

@cmwilson21 , updated.

[cmwilson21]

@AlexPykavy Thank you!! That's really helpful to our team to have that information. I'll get this triaged for review! ✨

[skedwards88]

Thanks for this update! We'll get this merged for you.

[github-actions]

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