Added IP2Location.io Ruby SDK (#1129)

Author: ip2location

README.md

@@ -750,6 +750,7 @@ Where to discover new Ruby libraries, projects and trends.
 * [geoip](https://github.com/cjheath/geoip) - Searches a GeoIP database for a given host or IP address, and returns information about the country where the IP address is allocated, and the city, ISP and other information.
 * [Geokit](https://github.com/geokit/geokit) - Geokit gem provides geocoding and distance/heading calculations.
 * [Google Maps for Rails](https://github.com/apneadiving/Google-Maps-for-Rails) - Enables easy Google map + overlays creation in Ruby apps.
+* [IP2Location.io](https://github.com/ip2location/ip2location-io-ruby) - A Ruby SDK allows user to query for an enriched data set based on IP address and provides WHOIS lookup api that helps users to obtain domain information.
 * [rgeo](https://github.com/rgeo/rgeo) - Geospatial data library. Spatial data types, geometric and spherical calculations, and WKT/WKB serialization.
 
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