希望增加一下demo client/server的使用说明

[flx413]

thanks

[ruiqizhou]

Hi, the demo_client and demo_server is used for Interoperability Test. You can use . /test_client and . /test_server, and see tests/test_client.c and tests/test_sever.c for options usage. Sorry there are no detailed instructions on how to use it at the moment, we will add them later.