Update native module documentation with NativeModuleSample/cs-lib

[jonthysell]

Summary

After we create a new cs-lib NativeModuleSample (see microsoft/react-native-windows-samples#1000 ) we will want to update the existing C# native module sample documentation to reflect the code in this version, and update links.

Motivation

The new hybrid template, while not "officially launched" in 0.76, is the way forward for library developers.

Basic Example

No response

Open Questions

No response

[similar-issues-ai[bot]]

We've found some similar issues:

• microsoft/react-native-windows-samples#999 , similarity score: 88%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

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