Add FreeGeoIP (#1025)

README.md

@@ -412,6 +412,7 @@ API | Description | Auth | HTTPS | CORS |
 | [bng2latlong](https://www.getthedata.com/bng2latlong) | Convert British OSGB36 easting and northing (British National Grid) to WGS84 latitude and longitude | No | Yes | Yes |
 | [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 |
+| [FreeGeoIP](https://freegeoip.app/) | Free geo ip information, no registration required. 15k/hour rate limit | No | Yes | Yes |
 | [GeoApi](https://api.gouv.fr/api/geoapi.html) | French geographical data | No | Yes | Unknown |
 | [Geocod.io](https://www.geocod.io/) | Address geocoding / reverse geocoding in bulk | `apiKey` | Yes | Unknown |
 | [Geocode.xyz](https://geocode.xyz/) | Provides worldwide forward/reverse geocoding, batch geocoding and geoparsing | No | Yes | Unknown |