fix: missing env var

Author: benjamsf

.github/workflows/deploypages.yml

@@ -102,6 +102,7 @@ jobs:
           ENABLE_TINA_ADMIN: true
           TINA_PUBLIC_CLIENT_ID: ${{ secrets.TINA_PUBLIC_CLIENT_ID }}
           TINA_TOKEN: ${{ secrets.TINA_TOKEN }}
+          DOCS_BASEURL: ${{ secrets.DOCS_BASEURL }}
         run: npm run build
 
       - name: Remove Tina .gitignore (prevent admin from being ignored)