conftest: this file should be added to waLBerla

The line is only need when running pytest form the root directory

conftest.py

@@ -57,6 +57,8 @@ try:
 except ImportError:
     collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_aligned_array.py"),
                        os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_datahandling_parallel.py"),
+                       os.path.join(SCRIPT_FOLDER, "doc/notebooks/03_tutorial_datahandling.ipynb"),
+                       os.path.join(SCRIPT_FOLDER, "pystencils/datahandling/parallel_datahandling.py"),
                        os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_small_block_benchmark.ipynb")]
 
 try: