Add note in RPC docs about retries. (#73601)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73601
Some users had questions about how the RPC framework deals with
failures and whether we retry. Adding a note about this to our docs to
elaborate on our current behavior and why we chose that approach.
ghstack-source-id: 150359866
Test Plan: view docs.
Reviewed By: mrshenli
Differential Revision: D34560199
fbshipit-source-id: ee33ceed7fa706270d4ca5c8fcff7535583490ff
(cherry picked from commit 954a906240cc40aacf08ca13f6554a35303a678a)
