Update app.py

app.py

@@ -48,7 +48,7 @@ def generate_keys():
     address_im.save("address_im.png")
     #qr_link="test"
     address_im = "address_im.png"
-    private_key_im = overlay.textover("private_key.png", "Key","")
+    private_key_im = overlay.textover("private_key.png", "Key",add_label)
     private_key_im.save("private_key_im.png")
     priv_key = stegan.conv_im("private_key_im.png",data=private_key)