Include repository size limits for GHAE

[gitstua]

After discussions in GHAE channel with @pevd950 I believe we should update the documentation to clarify our guidance for GHAE matches that for GHEC

Why:

Closes #20810

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

Include text currently showing as below to the documentation for AE for clarity

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

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  • 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")

[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
repositories/working-with-files/managing-large-files/about-large-files-on-github.md	fpt ghec ghes@ 3.6 3.5 3.4 3.3 3.2 ghae	fpt ghec ghes@ 3.6 3.5 3.4 3.3 3.2 ghae

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

[gitstua]

preview located at https://docs-20811-05b97c.preview.ghdocs.com/en/github-ae@latest/repositories/working-with-files/managing-large-files/about-large-files-on-github#repository-size-limits

[cmwilson21]

👋 @gitstua - Thank you for opening a PR and linking it to your issue! ✨

I'll get this triaged for review ⚡

[jc-clark]

✨ This looks great @gitstua, thank you! I added one suggestion for including the more specific on-disk limitation for GHAE inline. Once we get a gut check on that information, I think this will be good to merge.

[github-actions]

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