added documentation

backend/Tests/testagent.py

backend/__pycache__/businessprocess.cpython-311.pyc

backend/__pycache__/petrinet.cpython-311.pyc

backend/businessprocess.py

backend/docs/Makefile

backend/docs/_build/doctrees/businessprocess.doctree

backend/docs/_build/doctrees/case.doctree

backend/docs/_build/doctrees/dqn.doctree

backend/docs/_build/doctrees/environment.doctree

backend/docs/_build/doctrees/environment.pickle

backend/docs/_build/doctrees/eventlog.doctree

backend/docs/_build/doctrees/index.doctree

backend/docs/_build/doctrees/modules.doctree

backend/docs/_build/doctrees/petrinet.doctree

backend/docs/_build/doctrees/qagent.doctree

backend/docs/_build/doctrees/simplesimmodel.doctree

backend/docs/_build/html/.buildinfo

backend/docs/_build/html/_modules/businessprocess.html

backend/docs/_build/html/_modules/case.html

backend/docs/_build/html/_modules/dqn.html