Update app.py with examples

app.py

@@ -23,7 +23,8 @@ interface = gr.Interface(
                       inputs= "image",
                       outputs= "label",
                       title = 'Leaf Classication',
-                      description = "Many farming businesses are turning machine learning to monitor their crops automatically with great accuracy. This application can be used to detect Angular Leaf Spot and Bean Rust!"
+                      description = "Many farming businesses are turning machine learning to monitor their     crops automatically with great accuracy. This application can be used to detect Angular Leaf Spot and Bean Rust!",
+                      examples = [["bean_rust.jpeg"] , ["healthy.jpeg"] , ["angular_leaf_spot.jpeg"]]
                       )
 
 interface.launch()