Add xref links to FrameworkElement.Triggers for per-instance column in Storyboards table

[Copilot]

• Understand the table structure in storyboards-overview.md
• Add xref link to System.Windows.FrameworkElement.Triggers for the "Yes" value in the Per-instance column of the EventTrigger row
• Add xref link to System.Windows.FrameworkElement.Triggers for the "Yes" value in the Per-instance column of the Storyboard.Begin method row
• Fix xref syntax to use correct property reference (%2A suffix)
• Verify the change syntax matches existing xref usage patterns in the repository
• Remove angle brackets from xref links to use correct markdown syntax: [text](xref:api) instead of [text](<xref:api>)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Suggestion - Explain why EventTrigger is per-instance</issue_title>
<issue_description>

Type of issue

Other (describe below)

Description

Suggest that in the EventTrigger per-instance cell add a link to FrameworkElement.Triggers

Page URL

https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/storyboards-overview

Content source URL

https://github.com/dotnet/docs-desktop/blob/main/dotnet-desktop-guide/wpf/graphics-multimedia/storyboards-overview.md

Document Version Independent Id

8c13deea-bfdd-91b6-87b6-7b79d1a1de2f

Article author

adegeo

Metadata

• ID: 8c13deea-bfdd-91b6-87b6-7b79d1a1de2f
• Service: dotnet-framework
• Sub-service: wpf

</issue_description>

<agent_instructions>Add a link to the Yes values of the per-instance column of the Storyboard table. Set the link to an xref of system.windows.frameworkelement.triggers</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@adegeo Thank you for opening this issue. I'll add it to the backlog. If you would like to contribute, you can submit a fix by editing the original article. Click on the **Pencil** icon at the top of the article. To learn how to edit, see the [Editing files in a repository](https://help.github.com/articles/editing-files-in-your-repository) article from GitHub.

Thanks again!</comment_new>

Fixes #188

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Internal previews

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dotnet-desktop-guide/wpf/graphics-multimedia/storyboards-overview.md	dotnet-desktop-guide/wpf/graphics-multimedia/storyboards-overview