FIX: readme: use new and working url in example

README.md

@@ -15,12 +15,12 @@ There are also development build against the NETDB-Devel-API (api.netdb-devel.sc
 
 ## Usage
 ### Init
-Initialisation works as followed, for configuration an `APIEndpoint`-Instance has to be passed to the `API-Session` call.
+Initialisation works as follows, for configuration an `APIEndpoint`-Instance (in this case the test instance) has to be passed to the `API-Session` call.
 ```python
 >>> import netdb_client.api40
 
 >>> endpoint = netdb_client.APIEndpoint(
-    base_url='www-net-devel.scc.kit.edu',
+    base_url='api.netdb-test.scc.kit.edu',
     token='<token>'
 )
 >>> api = netdb_client.api40.APISession(endpoint)