Updated app.

app.py

@@ -61,7 +61,7 @@ example_list = []
 if os.path.exists(folder_path) and os.path.isdir(folder_path):
     file_paths = [os.path.join(folder_path, file_name) for file_name in os.listdir(folder_path)]
     for file_path in file_paths:
-        example_list.append(file_path)
+        example_list.append([file_path])
 
 def predict(my_image):
     image = Image.fromarray(my_image.astype('uint8'))