improve steps: naming PAT is not optional

[ayodejii]

Naming public access token is not optional, but the doc says it is.

This screenshot shows what happens if you do not name your PAT.

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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
authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token.md	fpt ghec ghes@ 3.7 3.6 3.5 3.4 3.3 ghae	fpt ghec ghes@ 3.7 3.6 3.5 3.4 3.3 ghae

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

[cmwilson21]

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

[felicitymay]

Many thanks for opening a pull request to fix this error in the docs 💖

Your change looks spot on. I'll mark it as ready to merge.

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