update links

Author: LiamConnors

src/plots/map/layout_attributes.js

@@ -284,7 +284,7 @@ var attrs = module.exports = overrideAll({
                 dflt: 'marker',
                 description: [
                     'Sets the symbol icon image (map.layer.layout.icon-image).',
-                    'Full list: https://www.map.com/maki-icons/'
+                    'Full list: https://www.mapbox.com/maki-icons/'
                 ].join(' ')
             },
             iconsize: {

src/traces/scattermap/attributes.js

@@ -119,7 +119,7 @@ module.exports = overrideAll({
             arrayOk: true,
             description: [
                 'Sets the marker symbol.',
-                'Full list: https://www.map.com/maki-icons/',
+                'Full list: https://www.mapbox.com/maki-icons/',
                 'Note that the array `marker.color` and `marker.size`',
                 'are only available for *circle* symbols.'
             ].join(' ')