Move development setup documentation from README to dedicated getting started guide#792

BenjaminMichaelis merged 2 commits intomainIntelliTect/EssentialCSharp.Web:mainfrom

copilot/fix-1451f9d3-afb5-4232-b302-a6add5e7d191IntelliTect/EssentialCSharp.Web:copilot/fix-1451f9d3-afb5-4232-b302-a6add5e7d191Copy head branch name to clipboard