update serving demo

* fix setup issue

* Update README.md

Polish README
Co-authored-by: NZeyu Chen <chenzeyu01@baidu.com>
Co-authored-by: NSteffy-zxf <48793257+Steffy-zxf@users.noreply.github.com>

Fix serving multiprocessing bug

add model_name check for bert serving

* optimize demo and cv reader

* remove needless import
Co-authored-by: Nwuzewu <wuzewu@baidu.com>

* finish coding predict

* optimize predict pr

* optimize _postprocessing

* optim namedtuple

* reconsitution reader and dataset

test=develop

add version match tips

* Add module v2

fix bs doc, fix serving port set

add multimachine support (mpi) for autofinetune.