update to v0.3.2

update README

update to v0.3

- format of config file about clients changed
- client is totally stateless

upgrade to v0.3.0-pre2

- add socks5 reverse proxy
- code clean

fix: fail to gen darwin client

real version v0.2.1, fix fail to gen darwin client because of different names between link_seciton and find_secion

wtf

don't know how to use it

update README