Hello to the group, 
If I wanted to contribute to the website map and design, how do I move forward?  I had a hard time deciding from the wiki how to proceed. I did find https://github.com/OpenRailwayMap/OpenRailwayMap this by selecting the authors list and found the fork and pull methods.  Shall I do such to make revision changes to the viewer? 

I would like to add an additional radial for railroad operator or ownership and work through the way that looks on the site.  Maybe color code owner/operators. 

I am asking to see what has changed, as some things have not been updated in a few years.  I don't want to step on anyone's toes as I move forward with my changes and future discussions. Eg. I want to step out on the right foot.