[TASK] Add test-docs to make file (#445)

* [TASK] Add test-docs to make file

Also adjust the gitignore as the newest ddev versions do not create one automatically anymore

releases: main, 12.4, 11.5

* Update .gitignore

* Update .gitignore

(cherry picked from commit 468d9b6)

Makefile

@@ -27,3 +27,10 @@ test-cgl: ## Test coding guidelines to PHP includes
 .PHONY: fix-cgl
 fix-cgl: ## Apply coding guidelines to PHP includes
 	Build/Scripts/runTests.sh -s cgl
+
+.PHONY: test-docs
+test-docs: ## Test the documentation rendering
+	mkdir -p Documentation-GENERATED-temp
+
+	docker run --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --fail-on-log --output-format=html
+