Hey mate, nice work being so quick to add the new sharrows here. I just wanted to let you know that the correct tag for bike sharrows like this is `cycleway=shared_lane`. I've just updated it so don't worry about changing anything. There's a good list of the tags that have been used for bike lanes around Melbourne on the wiki here: https://wiki.openstreetmap.org/wiki/Melbourne_Bike_Lane_Project
Cheers