updated readme and gitignore

.gitignore

-examples/tests
 **.pyc
 src/utils/__pycache__
 *.npy
 cleanup_env
-scripts/test.py
-examples/hit_cleanup_example.ipynb
-scripts/mdst_readout.py

README.md

@@ -36,6 +36,15 @@ To test the `gnn_cleanup`, run the example script with the appropriate options:
 python3 examples/testing_withoutb2luigi.py --n 100
 ```
 
+## Using other event files
+For using other events first update the `testing_config.json` file. There you can specify the following settings:
+- load_path: path to existing event root file
+- expList: experiment number list for EventInfoSetter
+- runList: run number list for EventInfoSetter
+- bg_file_list_path: path to background file lists
+
+You can either use existing event root files by setting the `load_path` to point to your files or generate new MC events by using the `--generate` flag and updating the `bg_file_list_path`, `expList` and `runList`.
+
 <!-- ## Contributing
 
 We welcome contributions! Please see our [Contributing Guide](CONTRIBUTING.md) for more details on how to get started.