add example

app.py

@@ -45,5 +45,5 @@ if my_upload is not None:
         st.error("The uploaded file is too large. Please upload an image smaller than 5MB.")
     else:
         fix_image(upload=my_upload)
-# else:
-#     fix_image("./zebra.jpg")
+else:
+    fix_image("./examples/zebra.jpg")