Add workflow

Author: rmcdaniel

.github/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Install dependencies
         run: npm ci
       - name: Build website
-        run: npm build
+        run: npm run build
 
       # Popular action to deploy to GitHub Pages:
       # Docs: https://github.com/peaceiris/actions-gh-pages#%EF%B8%8F-docusaurus