Merge branch 'master' into patch-2

Author: holly1238

beginner_source/basics/quickstart_tutorial.py

@@ -89,7 +89,7 @@
 
 # Get cpu or gpu device for training.
 device = "cuda" if torch.cuda.is_available() else "cpu"
-print("Using {} device".format(device))
+print(f"Using {device} device")
 
 # Define model
 class NeuralNetwork(nn.Module):

beginner_source/examples_autograd/polynomial_custom_function.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-r"""
+"""
 PyTorch: Defining New autograd Functions
 ----------------------------------------
 

recipes_source/recipes/Captum_Recipe.py

@@ -14,9 +14,10 @@
 # attribution algorithms such as \ ``Guided GradCam``\  and
 # \ ``Integrated Gradients``\  in a unified way.
 # 
-# In this recipe you will learn how to use Captum to: \* attribute the
-# predictions of an image classifier to their corresponding image
-# features. \* visualize the attribution results.
+# In this recipe you will learn how to use Captum to: 
+#
+# - Attribute the predictions of an image classifier to their corresponding image features. 
+# - Visualize the attribution results.
 #