fix api

Hi Zeno:

It seems that you  forget to update to the v3 api (but the v2 api still works because the count is correct). I update the api and  fix the wrong link (from /watch to /stargazers). I just fix the main js file and you may have to fix others:  the demo in this repo and your blog. They both also have extra link issue (/network not /fork, /fork does not exist).  @zenorocha