Improve nuget package readme

[thompson-tomo]

Is your feature request related to a problem? Please describe.
The current package readme is not informative about how to use the package

Describe the solution you'd like

The nuget package should be using the same readme as the repo to make it as easy as possible for a user to get started with the package.

Describe alternatives you've considered
Accept needing to go to github to get information

Additional context
N/a