Documentation: some work on updating it in preparation for version 0.4 (#594) [ci skip].
Documentation: some work on updating it in preparation for version 0.4 (#594) [ci skip].

mirams/opencor,Fairly/opencor,mirams/opencor,mirams/opencor,mirams/opencor,Fairly/opencor,mirams/opencor,Fairly/opencor,Fairly/opencor,Fairly/opencor