Include package README for NuGet

1.6.1

Add package README file for NuGet

Set target framework to .NET Standard 2.0

Following guidelines at https://learn.microsoft.com/en-us/dotnet/standard/library-guidance/cross-platform-targeting

Test release

Testing CI changes

Added new common MIME types from MDN

What's Changed

• Rename workflow by @markwhitaker in #33
• Add common MIME types from MDN by @markwhitaker in #34

Full Changelog: 1.4.1...1.5.0

Test release

Testing release via GitHub Actions

Test release

Testing release via GitHub Actions

Test release

Testing release via GitHub Actions

Test release

Testing release via GitHub Actions

Test release

Testing release via GitHub Actions

Minor release

No code changes, just launching a new CI pipeline