add geobrowser info (#305)

Author: nikgraf

docs/docs/publishing-public-data.md

@@ -68,3 +68,11 @@ const MyComponent = () => {
   };
 };
 ```
+
+## Exploring the Knowledge Graph via GeoBrowser
+
+In order to explore the knowledge graph you can use GeoBrowser.
+
+Visist [https://testnet.geobrowser.io/root](https://testnet.geobrowser.io/root) and explore the knowledge graph. Once you published you can find it via the search by name or by id.
+
+By looking up the data you also can verify that it was published correctly.