Doc Fixit: Broken links #5558
Description
- https://github.com/grpc/grpc/blob/master/doc/interop-test-descriptions.md, link to "test.proto"
- https://github.com/grpc/grpc/tree/master/examples, link to "gRPC Authentication Support"
- A stray reference to grpc_common: https://github.com/grpc/grpc/tree/master/examples/node