add Transports TAG for Grenoble, France (#692)

* add Transports TAG for Grenoble, France

* Order alphabeticals

* Order alphabeticals

* Update description for TAG (Mobility Transport)

* Update README.md

Remove # and duplicate API text

README.md

@@ -719,6 +719,7 @@ API | Description | Auth | HTTPS | CORS | Link |
 | Transport for Denver, US | RTD | No | No | Unknown | [Go!](http://www.rtd-denver.com/gtfs-developer-guide.shtml) |
 | Transport for Finland | Finnish transport API | No | Yes | Unknown | [Go!](https://digitransit.fi/en/developers/ ) |
 | Transport for Germany | Deutsche Bahn (DB) API | `apiKey` | No | Unknown | [Go!](http://data.deutschebahn.com/dataset/api-fahrplan) |
+| Transport for Grenoble, France | Grenoble public transport | No | No | No | [Go!](https://www.metromobilite.fr/pages/opendata/OpenDataApi.html) |
 | Transport for India | India Public Transport API | `apiKey` | Yes | Unknown | [Go!](https://data.gov.in/sector/transport) |
 | Transport for London, England | TfL API | No | Yes | Unknown | [Go!](https://api.tfl.gov.uk) |
 | Transport for Madrid, Spain | Madrid BUS transport API | `apiKey` | No | Unknown | [Go!](http://opendata.emtmadrid.es/Servicios-web/BUS) |