Merge pull request #9 from kuwala-io/fix/readme

List Google POI pipeline in general README.md

README.md

@@ -78,4 +78,6 @@ We currently have the following pipelines published:
 - [`osm-poi`](https://github.com/kuwala-io/kuwala/tree/master/kuwala-pipelines/osm-poi):
   Global collection of point of interests (POIs)
 - [`population-density`](https://github.com/kuwala-io/kuwala/tree/master/kuwala-pipelines/population-density): 
-  Detailed population and demographic data
+  Detailed population and demographic data
+- [`google-poi`](https://github.com/kuwala-io/kuwala/tree/master/kuwala-pipelines/google-poi):
+  Scraping API to retrieve POI information from Google (incl. popularity score)