Update known-limitations.mdx - Windows 365 limitations

[deansundquist]

Summary

In order to connect to Windows 365, on a PC that is running WARP, and while using the Windows App, specific networks now require exclusion.

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• The change adheres to the documentation style guide.

[deansundquist]

@deadlypants1973 I removed the term tunnels. I'd agree that it could be confused with Cloudflared tunnels.

[deadlypants1973]

Approved with comment for clarity

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