Add more info to DebuggerTypeProxyAttribute docs

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#6,827 opened on Jun 17, 2021 2 comments 1 reaction 0 assignees View on GitHub

area-System.Diagnostics Pri3

Description

![image](https://user-images.githubusercontent.com/31348972/122385911-9bf76a00-cf6d-11eb-994e-dd3111ec3e97.png)

The API docs may link to the VS docs, or copy the relevant paragraph from it.

FYI @Sergio0694

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