Better document the difference between `DumpType.Normal` and `DumpType.Triage`

[Cyberboss]

Documentation Request

The Microsoft.Diagnostics.NETCore.Client.DumpType enum has the same documentation comments for both Normal and Triage. Please document the difference between these two.

Previous documentation

https://github.com/dotnet/diagnostics/blob/main/documentation/diagnostics-client-library-instructions.md#enum-dumptype