add example of upload/download rate limiting to the client usage sample.
add example of upload/download rate limiting to the client usage sample.

rambegaokar/ttorrent,fspereira/ttorrent,tsbatista/ttorrent,pisek/ttorrent,shevek/ttorrent,akkinenirajesh/ttorrent,zanella/ttorrent,tsbatista/ttorrent,andrew749/ttorrent,fspereira/ttorrent,andrew749/ttorrent,zanella/ttorrent,henkel/ttorrent,indeedeng/ttorrent,13922841464/ttorrent,13922841464/ttorrent,akkinenirajesh/ttorrent,pisek/ttorrent,rambegaokar/ttorrent,henkel/ttorrent,d3roch4/ttorrent,shevek/ttorrent,d3roch4/ttorrent,indeedeng/ttorrent