Update app.py

app.py

@@ -499,6 +499,9 @@ def draw(state, drawpad):
 
 ### Load examples
 
+root = pathlib.Path(__file__).parent
+example_root = os.path.join(root, 'examples')
+
 with open(os.path.join(example_root, 'prompt_background.txt')) as f:
     prompts_background = [l.strip() for l in f.readlines() if l.strip() != '']