Added LocationIQ Geocoding API

README.md

@@ -362,6 +362,7 @@ API | Description | Auth | HTTPS | CORS | Link |
 | IP Sidekick | Geolocation API that returns extra information about an IP address | `apiKey` | Yes | Unknown | [Go!](https://ipsidekick.com) |
 | IP Vigilante | Free IP Geolocation API | No | Yes | Unknown | [Go!](https://www.ipvigilante.com/) |
 | LabStack | Find IP to location, location to latitude-longitude and reverse | `apiKey` | Yes | Yes | [Go!](https://labstack.com/api/geocode/address) |
+| LocationIQ | Provides forward/reverse geocoding and batch geocoding | `apiKey` | Yes | Yes | [Go!](https://locationiq.org/docs/) |
 | Mapbox | Create/customize beautiful digital maps | `apiKey` | Yes | Unknown | [Go!](https://www.mapbox.com/developers/) |
 | Mexico | Mexico RESTful zip codes API | No | Yes | Unknown | [Go!](https://github.com/IcaliaLabs/sepomex) |
 | One Map, Singapore | Singapore Land Authority REST API services for Singapore addresses | `apiKey` | Yes | Unknown | [Go!](https://docs.onemap.sg/) |