Fix comments on MediaTypeNames

[rzikm]

Changes based on code review on dotnet/runtime#92220

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Issue Details

---

Changes based on code review on dotnet/runtime#92220

Author:	rzikm
Assignees:	rzikm
Labels:	area-System.Net
Milestone:	-

[learn-build-service-prod]

Learn Build status updates of commit 91730c9:

❌ Validation status: errors

Please follow instructions here which may help to resolve issue.

File	Status	Preview URL	Details
	❌Error		Details

• [Error: CannotMergeCommit] Cannot merge commit 91730c96fcd22758091f5c89c0317e47d6623560 in branch 88569-mediatypenames of repository https://github.com/rzikm/dotnet-api-docs into branch main (commit 651a244db8a97e89732a1dd98e7bbe0167c926bf). Please follow this documentation: https://help.github.com/articles/resolving-a-merge-conflict-using-the-command-line/ to use git.exe to resolve you content conflicts locally and then push to remote.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit 28c05e1:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Net.Mime/MediaTypeNames+Application.xml	✅Succeeded	View
xml/System.Net.Mime/MediaTypeNames+Multipart.xml	✅Succeeded	View
xml/System.Net.Mime/MediaTypeNames+Text.xml	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[rzikm]

The wording has been approved by gewarren on dotnet/runtime#92220