Added Izi in Transportation section

README.md

@@ -464,6 +464,7 @@ API | Description | Auth | HTTPS | Link |
 | Community Transit | Transitland API | No | Yes | [Go!](https://github.com/transitland/transitland-datastore/blob/master/README.md#api-endpoints) |
 | Goibibo | API for travel search  | `apiKey` | Yes | [Go!](https://developer.goibibo.com/docs) |
 | Indian Railways | Indian Railways Information | `apiKey` | No | [Go!](http://api.erail.in/) |
+| Izi | Audio guide for travellers | `apiKey` | Yes | [Go!](http://api-docs.izi.travel/) |
 | Navitia | The open API for building cool stuff with transport data | `apiKey` | Yes | [Go!](https://api.navitia.io/) |
 | The Nomad List | A list of the best places to live/work remotely | No | Yes | [Go!](https://nomadlist.com/faq) |
 | Schiphol Airport | Schiphol | `apiKey` | Yes | [Go!](https://developer.schiphol.nl/) |