Add pointer to dependencies needed to build from scratch to the README (#295)
Add pointer to dependencies needed to build from scratch to the README (#295)

This is safer and easier to maintain than trying to replicate what the users will need.
GoogleCloudPlatform/google-cloud-dotnet-debugger,GoogleCloudPlatform/google-cloud-dotnet-debugger,GoogleCloudPlatform/google-cloud-dotnet-debugger,GoogleCloudPlatform/google-cloud-dotnet-debugger