Update SpecData.json spec URL for Geolocation API (#1315)
Update SpecData.json spec URL for Geolocation API (#1315)

This change updates the SpecData URL for the Geolocation API to its actual
current location at to https://w3c.github.io/geolocation-api/ (which the
old https://dev.w3.org/geo/api/spec-source.html URL redirects to).
jpmedley/kumascript,a2sheppy/kumascript,a2sheppy/kumascript,jpmedley/kumascript