A Chrome Extension that injects NYC Subway lines on streeteasy.com's maps
##How to Install
- Clone this repo
- Navigate to chrome://extensions/
- Check the box for "Developer Mode"
- Click the button to "Load Unpacked Extension..."
- Select the cloned repo's folder
- Navigate to streeteasy.com, search, load a map, and you should see the subway lines and stops appear.
- Add Subway stops markers
- Add logic that checks for the existence of a map before attempting to add things to a map.