Updating to newer gitversion on docker (old one not available anymore) (

roryprimrose#7)

* Change to newer gitversion docker image
* update entrypoint for dotnet executable

Updating to newer gitversion on docker (old one not available anymore) (

roryprimrose#7)

* Change to newer gitversion docker image
* update entrypoint for dotnet executable

Added branding (roryprimrose#2)