what's the deference between the author and committer？
Created by: yeqf911
{ "id": "1920b18bd07b1ceb604fe93f5ba200cb1ef3d858", "message": "add develop xxx", "parent_ids": [ "2946e83dee82f2c7b05586f5ete901b83625038e" ], "authored_date": "2018-04-13T11:14:25.000+08:00", "author_name": "xxx", "author_email": "[email protected]", "committed_date": "2018-04-13T11:14:25.000+08:00", "committer_name": "xxx", "committer_email": "[email protected]", "format": null },