docs: support mac

Author: dgarcia360

docs/Makefile

@@ -25,7 +25,8 @@ setupenv:
 setup:
 	$(POETRY) install
 	$(POETRY) update
-	cp -TLr source $(SOURCEDIR)
+	@if [ ! -d "$(SOURCEDIR)" ]; then mkdir -p "$(SOURCEDIR)"; fi
+	cp -RL source/* $(SOURCEDIR)
 	python _utils/prepare_sphinx_source.py _source
 
 # Clean commands