Update gh-pages-main.yml

Author: iisa

.github/workflows/gh-pages-main.yml

@@ -22,7 +22,7 @@ jobs:
         run: npm install
 
       - name: Create build files for gh-pages deploy
-        run: npm ghpages:build
+        run: npm run ghpages:build
 
       # Reference: https://github.com/JamesIves/github-pages-deploy-action
       - name: Deploy 🚀