Updated README for request method
Updated README for request method

kemadz/gorequest,roth1002/gorequest,jqs7/gorequest,fromkeith/gorequest,vicanso/gorequest,parnurzeal/gorequest,QuentinPerez/gorequest,going/requests,csrgxtu/gorequest,julianshen/gorequest,rockneurotiko/gorequest