Exceptions documentation page needs a couple of samples

[lostmsu]

Definitely one example with the best practice on error handling to give us the users a good start.

And maybe one for passing .NET exception objects.

### Tasks

[AArnott]

What kinds of use cases are you looking for samples of?

[lostmsu]

If implementation of my remote service throws an exception, what is the best way to handle it on the client.

[AArnott]

Thanks. To clarify, you don't find https://github.com/microsoft/vs-streamjsonrpc/blob/main/doc/exceptions.md#client-side-concerns to be adequate documentation?

[lostmsu]

A sample is better than a thousand words.