Or you can edit right in the map view and commit with geojson.io. For example, <a href="http://geojson.io/#id=github:open-air-data/atc-radar/blob/master/data/radars.geojson&map=2/44.4/-40.1" rel="nofollow">http://geojson.io/#id=github:open-air-data/atc-radar/blob/ma...</a>