Updates the OSH Infra README to match that of addons and OSH. Provides direction for filing bugs and blueprints against OSH infra and the communication information for OSH Change-Id: Ib09aced63dea2e5d4067cb8e1ba8f2e97d4059ae
Change-Id: Ie4436a8239e247590fa78a6b9c8830e83b39f2d0