don't show working_with_data_example anymore on the docs

docs/user_guide/sfincs_build_update.rst

@@ -147,4 +147,4 @@ See `Example: Build from Script <../_examples/build_from_script.ipynb>`_ for a m
     Example: Build from CLI <../_examples/build_from_cli.ipynb>
     Example: Build from script <../_examples/build_from_script.ipynb>
     Example: Setup model forcing <../_examples/example_forcing.ipynb>
-    Example: Working with data <../_examples/example_datasources.ipynb>
+    .. Example: Working with data <../_examples/example_datasources.ipynb>