Fix note syntax for mstest analyzer docs

[Youssef1313]

---

Internal previews

📄 File	🔗 Preview link
docs/core/testing/mstest-analyzers/mstest0034.md	MSTEST0034: Use ClassCleanupBehavior.EndOfClass with the [ClassCleanup]
docs/core/testing/mstest-analyzers/mstest0039.md	"MSTEST0039: Use newer 'Assert.Throws' methods"
docs/core/testing/mstest-analyzers/mstest0053.md	MSTEST0053: Avoid using Assert methods with format parameters

[Copilot]

Pull Request Overview

This PR fixes Markdown alert syntax errors in MSTest analyzer documentation by correcting the NOTE directive format from > [NOTE] to > [!NOTE].

• Corrected Markdown alert syntax in three MSTest analyzer documentation files.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
docs/core/testing/mstest-analyzers/mstest0053.md	Fixed Markdown NOTE alert syntax to include required exclamation mark.
docs/core/testing/mstest-analyzers/mstest0039.md	Fixed Markdown NOTE alert syntax to include required exclamation mark.
docs/core/testing/mstest-analyzers/mstest0034.md	Fixed Markdown NOTE alert syntax to include required exclamation mark.