Update manual-trigger-rtd-build.yml

#2449

Author: psonnera

.github/workflows/manual-trigger-rtd-build.yml

@@ -11,6 +11,11 @@ jobs:
       shell: bash
       run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
       id: extract_branch
+    - name: Fix front-matter fences (first 3 lines only)
+      run: |
+        for f in $(find docs/CROWDIN -type f -name "*.md"); do
+          head -n 3 "$f" | sed -i 's/^- - -$/---/' "$f"
+        done
     - name: curl
       uses: wei/curl@v1
       with: