Update public site URL.

Author: njhenry

docs/index.rst

@@ -6,7 +6,7 @@ OpenStreetMap, Overture Maps, and Foursquare OS Places, with utilities for
 modeling POI stability over time using historical OSM data.
 
 - **GitHub:** https://github.com/henryspatialanalysis/openpois
-- **Web map:** https://henryspatialanalysis.github.io/openpois/
+- **Web map:** https://openpois.org/
 
 .. toctree::
    :maxdepth: 2