or if using chrome browser
in the top right of screen.
A drop down will appear,
icon should appear
Top right click
"Add bookmark" with a plus sign will appear. Press the plus sign.
A field will appear named "title", write the name of the takeaway into the title box e.g wings chinese.
Once named press save and bookmark will appear.
Press and hold bookmark image, a menu list will appear. Select "Add to home screen" or "Add shortcut to home" and icon will appear on home screen of phone.
This should cover most android devices however if your device is different simply google the instructions on how to add a website shortcut to your homepage.