Make the README for textsum a little clearer
Make the README for textsum a little clearer

sshleifer/object_detection_kitti,jiaphuan/models,r888888888/models,alexgorban/models,tombstone/models,bousmalis/models,alexgorban/models,derekjchow/models,wangyang59/tf_models,xcyan/models,sshleifer/object_detection_kitti,xcyan/models,bousmalis/models,wangyang59/tf_models,cshallue/models,r888888888/models,jazcollins/models,xcyan/models,jiaphuan/models,sshleifer/object_detection_kitti,derekjchow/models,jazcollins/models,bousmalis/models,zbigniewwojna/text-rcnn,cshallue/models,sshleifer/object_detection_kitti,jch1/models,jch1/models,tombstone/models,sshleifer/object_detection_kitti,tombstone/models,xcyan/models,jazcollins/models,r888888888/models,jch1/models,xcyan/models,alexgorban/models,jch1/models,jazcollins/models,wangyang59/tf_models,tombstone/models,cshallue/models,bousmalis/models,xcyan/models,sshleifer/object_detection_kitti,jch1/models,jazcollins/models,cshallue/models,alexgorban/models,bousmalis/models,jiaphuan/models,bousmalis/models,tombstone/models,wangyang59/tf_models,jiaphuan/models,r888888888/models,wangyang59/tf_models,derekjchow/models,r888888888/models,jazcollins/models,alexgorban/models,jch1/models,derekjchow/models,cshallue/models,wangyang59/tf_models,r888888888/models,tombstone/models,derekjchow/models,jiaphuan/models,jiaphuan/models