Crawler by using superagent make request and using promise to make a async request.
# in order to
just for myself to study node.js and promise/A+ stander
# content
is a crawler about crawler the cnode community user's comment.
# introduce
app.js has two main program, first url '/' is crawler in common option.
second one '/async' is crawler by use promise/A+ stander and superagent to make a async request,
in test ,second one actually can save a lot of times.
## use
npm i