add walk through dir

helper_functions.py

@@ -33,7 +33,7 @@ def walk_through_dir(dir_path):
       name of each subdirectory
     """
     for dirpath, dirnames, filenames in os.walk(dir_path):
-    print(f"There are {len(dirnames)} directories and {len(filenames)} images in '{dirpath}'.")
+        print(f"There are {len(dirnames)} directories and {len(filenames)} images in '{dirpath}'.")
 
 def plot_decision_boundary(model: torch.nn.Module, X: torch.Tensor, y: torch.Tensor):
     """Plots decision boundaries of model predicting on X in comparison to y.