Merge pull request #75 from stzn/update-docc

update v2 -> v3

Author: stzn

.github/workflows/docc.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Build DocC Archive
         run: |
           ./deploy-docc-page.sh
-      - uses: actions/upload-pages-artifact@v2
+      - uses: actions/upload-pages-artifact@v3
         with:
           path: docs
   DeployDocC: