Fix up STJ comments

[gewarren]

• Remove internal only remark
• Add see also link to new conceptual doc

[ghost]

Tagging subscribers to this area: @dotnet/area-system-text-json
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Issue Details

---

• Remove internal only remark
• Add see also link to new conceptual doc

Author:	gewarren
Assignees:	-
Labels:	area-System.Text.Json
Milestone:	-

[gewarren]

Close/reopen for build.

[opbld33]

Docs Build status updates of commit 3aca760:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Text.Json.Serialization.Metadata/JsonCollectionInfoValues`1.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonObjectInfoValues`1.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonParameterInfoValues.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonPropertyInfo.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonTypeInfo.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

[eiriktsarpalis]

Thank you!

[opbld32]

Docs Build status updates of commit 5bfff12:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Text.Json.Serialization.Metadata/JsonObjectInfoValues`1.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonParameterInfoValues.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonPropertyInfo.xml	✅Succeeded	View
xml/System.Text.Json.Serialization.Metadata/JsonTypeInfo.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