docs(#517): added logging to job manager docs

Author: JanssenBrm

openeo/extra/job_management.py

@@ -38,10 +38,16 @@ class MultiBackendJobManager:
 
     .. code-block:: python
 
+        import logging
         import pandas as pd
         import openeo
         from openeo.extra.job_management import MultiBackendJobManager
 
+        logging.basicConfig(
+            format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+            level=logging.INFO
+        )
+
         manager = MultiBackendJobManager()
         manager.add_backend("foo", connection=openeo.connect("http://foo.test"))
         manager.add_backend("bar", connection=openeo.connect("http://bar.test"))