Follow these simple steps to add your location to the map (link below)
1 - Sign into the map with Gmail
2 - Click the edit button.
3 - Zoom to the location you wish to add then click & drop the placemark on it.
4 - Add a title & description of the location.
5 - When your finished adding the details click 'OK'
6 - Now click 'Done'
6 - Finally, sign out of the map.