This comes up a fair bit in discussion with management server
implementers, @ramaraochavali suggested we explain this.
Signed-off-by: Harvey Tuch <htuch@google.com>
Links xDS earlier in API v2 overview. Removes line numbers from github xDS proto links.
Modifies xDS protocol doc to more clearly define xDS at the start.
Signed-off-by: Stephan Zuercher <stephan@turbinelabs.io>
Provide the xDS protocol description. This is the contract between the Envoy implementation and management server.
Signed-off-by: Harvey Tuch htuch@google.com