After you have finished creating a map, you are now ready to share it with the world. To do so, go back to your map list, and find the map in your list. As the list is ordered by most recently changed, it should be at the top.
In the map list, click the "Share Map" button to bring up the sharing options. By default the map is shared publicly. If you only want other users in your project to access it, uncheck the "Public Map" option.
To view the map, just click on the "View Map" Button. Also you can copy the URL so you can send it to other people or share it on social media sites.