Add Urban Observatory (#2664)

README.md

@@ -1112,6 +1112,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Universities List](https://github.com/Hipo/university-domains-list) | University names, countries and domains | No | Yes | Unknown |
 | [University of Oslo](https://data.uio.no/) | Courses, lecture videos, detailed information for courses etc. for the University of Oslo (Norway) | No | Yes | Unknown |
 | [UPC database](https://upcdatabase.org/api) | More than 1.5 million barcode numbers from all around the world | `apiKey` | Yes | Unknown |
+| [Urban Observatory](https://urbanobservatory.ac.uk) | The largest set of publicly available real time urban data in the UK | No | No | No |
 | [Wikidata](https://www.wikidata.org/w/api.php?action=help) | Collaboratively edited knowledge base operated by the Wikimedia Foundation | `OAuth` | Yes | Unknown |
 | [Wikipedia](https://www.mediawiki.org/wiki/API:Main_page) | Mediawiki Encyclopedia | No | Yes | Unknown |
 | [Yelp](https://www.yelp.com/developers/documentation/v3) | Find Local Business | `OAuth` | Yes | Unknown |