[Feature Request]: Development/contributor guide

[sparklerfish]

What is your request?

I recently made a fix to the sorting logic for shows and wanted to build so I could actually test it, but could not get it to work -- I wasn't able to get the packages/dependencies to resolve/restore with either "Restore NuGet Packages" or the Package Manager Console. A guide to setting up the environment would be fantastic to help contributors.

Here's some examples of errors I got while attempting to restore the packages so I could build:

NU1100: Unable to resolve 'System.Threading.Tasks (>= 4.3.0)' for '.NETFramework,Version=v4.8.1/win-x86'.
NU1100: Unable to resolve 'System.Threading.Tasks.Extensions (>= 4.6.3)' for '.NETFramework,Version=v4.8.1/win-x86'.
NU1100: Unable to resolve 'System.Threading.Timer (>= 4.3.0)' for '.NETFramework,Version=v4.8.1/win-x86'.
NU1100: Unable to resolve 'System.ValueTuple (>= 4.6.1)' for '.NETFramework,Version=v4.8.1/win-x86'.
NU1100: Unable to resolve 'System.Xml.ReaderWriter (>= 4.3.1)' for '.NETFramework,Version=v4.8.1/win-x86'.
NU1100: Unable to resolve 'System.Xml.XDocument (>= 4.3.0)' for '.NETFramework,Version=v4.8.1/win-x86'.
Failed to restore C:\FallGuysStats\FallGuysStats.csproj (in 12 ms).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
Time Elapsed: 00:00:00.0381092