Refs #36485 -- Added sphinx-lint support and make lint rule for docs.

This adds a `lint.py` script to run sphinx-lint on Django's docs files,
a mathing `lint` target in the `docs/Makefile` and `docs/make.bat`, and
updates `docs/requirements.txt` accordingly.

1 files changed, 6 insertions, 0 deletions

diff --git a/docs/Makefile b/docs/Makefile
index 9935ad09e5..78cbccd00e 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -51,6 +51,7 @@ help:
 	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
 	@echo "  spelling   to check for typos in documentation"
 	@echo "  black      to apply the black formatting to code blocks in documentation"
+	@echo "  lint       to check for linting errors in documentation"
 
 
 clean:
@@ -175,6 +176,11 @@ black:
 	@echo
 	@echo "Code blocks reformatted"
 
+lint:
+	$(PYTHON) lint.py
+	@echo
+	@echo "Documentation lint complete."
+
 check: spelling black
 	@echo
 	@echo "Style and spelling checks completed."