updated the docs of merging multiple user accounts

[codematrixaditya]

Why:

Closes#11082

What's being changed:

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• I have reviewed my changes in staging (look for the latest deployment event in your pull request's timeline, then click View deployment).
• For content changes, I have completed the self-review checklist.

Writer impact (This section is for GitHub staff members only):

• This pull request impacts the contribution experience
  • I have added the 'writer impact' label
  • I have added a description and/or a video demo of the changes below (e.g. a "before and after video")

[ramyaparimi]

@adityatheoctocatdev
Thanks so much for opening a PR! I'll get this triaged for review ⚡

[lecoursen]

Thanks @adityatheoctocatdev! I'm going to apply a small change and then merge this.

[ramyaparimi]

@adityatheoctocatdev
Can you enable the checkbox to allow maintainer edits? Then I'll be able to hit the update button and get this merged in. Thank you! https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/allowing-changes-to-a-pull-request-branch-created-from-a-fork

[codematrixaditya]

@adityatheoctocatdev Can you enable the checkbox to allow maintainer edits? Then I'll be able to hit the update button and get this merged in. Thank you! https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/allowing-changes-to-a-pull-request-branch-created-from-a-fork

@ramyaparimi
the checkbox is already enabled. Thank You!.

[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

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Source	Staging	Production	What Changed
content/account-and-profile/setting-up-and-managing-your-github-user-account/managing-user-account-settings/merging-multiple-user-accounts.md	Modified	Original

[github-actions]

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