Correcting .NET examples in the workflow docs

[WhitWaldo]

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Description

Following in the steps of past PRs, I'm submitting a few tiny changes to the .NET examples in the workflow documentation that should be corrected for greater clarity and to put forward ideas of how things should be done in the "real world". My hope is that by being clear about this in the examples, we can avoid assuming that developers would "just know" that toy examples aren't actually following best practices and teach them from example how to properly do everything from the get-go.

Issue reference

[msfussell]

LGTM