Documentation seems outdated/non-functional

It looks as if the examples provided in the documentation at https://higgs-dna.readthedocs.io/en/latest/examples.html do not work.

I haven't tried all of them, but e.g. https://higgs-dna.readthedocs.io/en/latest/notebooks/basics.html first shows a deprecation warning, then fails:

basic_example.py:14: DeprecationWarning: open_text is deprecated. Use files() instead. Refer to https://importlib-resources.readthedocs.io/en/latest/using.html#migrating-from-legacy for migration advice.
  with resources.open_text("higgs_dna.metaconditions", "Era2017_legacy_xgb_v1.json") as f:
Traceback (most recent call last):
  File "/Users/clange/dev/LeaAnalysis/basic_example.py", line 17, in <module>
    processor_instance = DYStudiesProcessor(
                         ^^^^^^^^^^^^^^^^^^^
TypeError: DYStudiesProcessor.__init__() got an unexpected keyword argument 'do_systematics'

I would somehow hope that there are some minimal examples that are maintained. It is currently unclear how people should get started.