**The program must be started with at least two processes running. 1. server and 1. client.
To start a server the following command in a terminal must be run:
cd server go run main.go
To start a client the following command must be run in another terminal windows:
cd client go run main.go 'clientname'
There service support multiple clients interacting with one server in one chat room.
so startup 4 terminals and you can run server from one, and client from the others