v3.0.0-rc2

Added ability to refresh list of repositories.

v3.0.0-rc.2

Added ability to refresh list of repositories.

v3.0.0-rc: Upgrading to .NET Core 3.1. (#2)

* Upgrading to .NET Core 3.1.

* Adding basic infra pieces.

* Added several unit tests.

* Update next version.

* Adding initial readme.

* Decreased code coverage.