1cd234627e
https://grpc.io/docs/guides/wire.html is no longer valid. Looking at an archived version of that page (https://web.archive.org/web/20171006045517/https://grpc.io/docs/guides/wire.html) it looks equilavent to what is now posted at: https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md. The gRPC guide: https://grpc.io/docs/guides/ contains a link in the sidebar navigation to the same page, so pretty sure it's correct.