Update reference to index.js command.
Update reference to index.js command.

makinacorpus/tilestream,staltz/tilestream,mapbox/tilestream,staltz/tilestream,markng/tilestream,simonpoole/tilestream,zhm/tilestream,frankrowe/tilestream,frankrowe/tilestream,NolaMark/tilestream,simonpoole/tilestream,HydroLogic/tilestream,NolaMark/tilestream,HydroLogic/tilestream,makinacorpus/tilestream,mapbox/tilestream,zhm/tilestream,markng/tilestream