[TASK] Introduce testing workflows

.github/workflows/documentation.yml

@@ -0,0 +1,17 @@
+name: test documentation
+
+on: [ push, pull_request ]
+
+jobs:
+  tests:
+    name: documentation
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Test if the documentation will render without warnings
+        run: |
+          mkdir -p Documentation-GENERATED-temp \
+          && docker run --rm --pull always -v $(pwd):/project \
+             ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --fail-on-log

Makefile

@@ -3,9 +3,14 @@ help: ## Displays this list of targets with descriptions
 	@echo "The following commands are available:\n"
 	@grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[32m%-30s\033[0m %s\n", $$1, $$2}'
 
-
 .PHONY: docs
-docs: ## Generate projects docs (from "Documentation" directory)
+docs: ## Generate projects documentation (from "Documentation" directory)
 	mkdir -p Documentation-GENERATED-temp
 
 	docker run --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation
+
+.PHONY: test-docs
+test-docs: ## Test the documentation rendering
+	mkdir -p Documentation-GENERATED-temp
+
+	docker run --rm --pull always -v "$(shell pwd)":/project -t ghcr.io/typo3-documentation/render-guides:latest --config=Documentation --no-progress --fail-on-log