Adding Geocod.io to the Geocoding APIs list (#839)

* Adding Geocod.io to the Geocoding APIs list

* Update README.md

README.md

@@ -399,6 +399,7 @@ API | Description | Auth | HTTPS | CORS |
 | [CitySDK](http://www.citysdk.eu/citysdk-toolkit/) | Open APIs for select European cities | No | Yes | Unknown |
 | [Daum Maps](http://apis.map.daum.net/) | Daum Maps provide multiple APIs for Korean maps | `apiKey` | No | Unknown |
 | [GeoApi](https://api.gouv.fr/api/geoapi.html) | French geographical data | No | Yes | Unknown |
+| [Geocod.io](https://www.geocod.io/) | Address geocoding / reverce geocoding in bulk | `apiKey` | Yes | Unknown |
 | [Geocode.xyz](https://geocode.xyz/) | Provides worldwide forward/reverse geocoding, batch geocoding and geoparsing | No | Yes | Unknown |
 | [GeoJS](https://geojs.io/) | IP geolocation with ChatOps integration | No | Yes | Yes |
 | [GeoNames](http://www.geonames.org/export/web-services.html) | Place names and other geographical data | No | No | Unknown |