Merge pull request tmcw#29 from simonepri/patch-1

Add geo-countries

README.md

@@ -77,6 +77,7 @@ GeoJSON utilities that will make your life easier.
 * [natural earth](http://www.naturalearthdata.com/): country, province, and geographical data
 * [geojson.xyz](http://geojson.xyz/): natural earth data in web-friendly sizes with hotlinking
 * [world-atlas](https://github.com/topojson/world-atlas): customizable simplified versions of natural earth data
+* [geo-countries](https://github.com/simonepri/geo-countries): GeoJSON political boundaries from OSM
 * [openflights-geojson](https://github.com/tmcw/openflights-geojson): [openflights](http://openflights.org/) airports & airplane routes
 * [us-atlas](https://github.com/topojson/us-atlas): geojson & topojson for United States features
 * [metro-extracts](https://mapzen.com/data/metro-extracts/): regional OpenStreetMap data as GeoJSON