Port missing docs for System.Formats.Tar

[carlossanlop]

Porting these bad boys dotnet/runtime#74786

[ghost]

I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

[ghost]

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Issue Details

---

Porting these bad boys dotnet/runtime#74786

Author:	carlossanlop
Assignees:	carlossanlop
Labels:	area-System.IO
Milestone:	-

[opbld30]

Docs Build status updates of commit 0e5ba1d:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Formats.Tar/GnuTarEntry.xml	✅Succeeded	View
xml/System.Formats.Tar/PaxTarEntry.xml	✅Succeeded	View
xml/System.Formats.Tar/TarReader.xml	✅Succeeded	View
xml/System.Formats.Tar/TarWriter.xml	✅Succeeded	View
xml/System.Formats.Tar/UstarTarEntry.xml	✅Succeeded	View
xml/System.Formats.Tar/V7TarEntry.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

For any questions, please:

• Try searching the docs.microsoft.com contributor guides
• Post your question in the Docs support channel