Merge pull request #333 from fusion-energy/shimwell-patch-4

Update documentation_update.yml

.github/workflows/documentation_update.yml

@@ -45,13 +45,13 @@ jobs:
         run: |
           sphinx-build docs _build/${{ github.ref_name }}
           rm -rf _build/stable
-          mkdir _build/stable
+          mkdir -p _build/stable
           sphinx-build docs _build/stable
       - name: Sphinx build dev version
         if: (github.event_name == 'push' || github.event_name == 'pull_request') && !startsWith(github.ref, 'refs/tags/')
         run: |
           rm -rf _build/dev
-          mkdir _build/dev
+          mkdir -p _build/dev
           sphinx-build docs _build/dev
       - name: Deploy docs to GitHub Pages
         if: github.event_name == 'push' || startsWith(github.ref, 'refs/tags/')