{"push_id":555623270,"size":1,"distinct_size":1,"ref":"refs/heads/master","head":"ad860b6748acefc7092967fefec110da72c110ae","before":"fa589b9ad1cc266d608f6e58371de6be5152b6be","commits":[{"sha":"ad860b6748acefc7092967fefec110da72c110ae","author":{"email":"782aced949cf411e0f349a0d172a631b30425397@buffalo.edu","name":"Peiran"},"message":"updated readme file","distinct":true,"url":"https://api.github.com/repos/PeiranSong/datasciencecoursera/commits/ad860b6748acefc7092967fefec110da72c110ae"}]}