doc: add centralized chassis IPC over ZeroMQ HLD#2438

pkudlurr1 wants to merge 1 commit into

sonic-net:mastersonic-net/SONiC:masterfrom

pkudlurr1:centralized-chassis-ipc-hldpkudlurr1/SONiC:centralized-chassis-ipc-hldCopy head branch name to clipboard