Migrate documentation to docfx
Merged
RO
2y ago+173+173+012345678901234567890123456789-677-677-012345678901234567890123456789
Changes:
- Documentation is migrated to docfx platform. https://github.com/dotnet/docfx
- Github actions are updated
- Ruby dependency is removed
- Cleanup & update some test dependencies for build.fsproj
- Fix pipeline link in readme
related: https://github.com/nsubstitute/NSubstitute/issues/269