Merge pull request advboxes#41 from xzyaoi/patch-1

fix documents from "Tensorflow Model" to "Pytorch Model"

advbox/models/pytorch.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 """
-Tensorflow model
+Pytorch model
 """
 from __future__ import absolute_import