Merge pull request plone#1391 from plone/gha-vale

Attempt to run Vale in GitHub Actions

Author: stevepiercy

.github/workflows/test.yml

@@ -20,6 +20,14 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -q -r requirements.txt
+          sudo snap install --edge vale
 
       - name: Run tests with make test
         run: make test
+
+      - name: Run vale
+        run: |
+          git clone https://github.com/errata-ai/Microsoft.git
+          cp -r ./Microsoft/Microsoft ./styles
+          VALEFILES=$(find -L ./docs/ -type d \( -path "./docs/plone.restapi/lib/*" -o -path "./docs/plone.restapi/performance/*" \) -prune -false -o -type f -name "*.md" -print)
+          vale --no-exit $VALEFILES