Update documentation building process (#236)

Author: Joseph-Edwards

Makefile

@@ -9,6 +9,9 @@ all: install doc
 doc:
 	etc/make-doc.sh
 
+fresh-doc: clean-doc
+	etc/make-doc.sh --check-unused
+
 doctest:
 	cd docs && make doctest
 
@@ -22,8 +25,8 @@ check: doctest
 	pytest -vv tests/test_*.py
 
 lint:
-	ruff check --exit-zero setup.py tests/*.py libsemigroups_pybind11/*.py docs/source/conf.py
-	pylint --exit-zero setup.py tests/*.py libsemigroups_pybind11/*.py docs/source/conf.py
+	ruff check --exit-zero setup.py tests/*.py libsemigroups_pybind11/**/*.py docs/source/**/*.py
+	pylint --exit-zero setup.py tests/*.py libsemigroups_pybind11/**/*.py docs/source/**/*.py
 	cpplint src/*.hpp src/*.cpp
 
 coverage: