Add command for testing the build without having to push to Vercel

README.md

@@ -59,6 +59,8 @@ To generate a production build, run the following command.
 npm run build
 ```
 
+You can also run `npm run build:serve` to start an [`http-server`](https://www.npmjs.com/package/http-server) instance on `http://localhost:4000` after the build completes, so you can preview the production build.
+
 ### Creating New Components
 
 To scaffold a new component, run the following command, replacing `wa-tag-name` with the desired tag name.

package.json

@@ -46,6 +46,7 @@
   "scripts": {
     "start": "node scripts/build.js --develop",
     "build": "node scripts/build.js",
+    "build:serve": "npm run build && npx http-server _site -p 4000",
     "build:alpha": "node scripts/build.js --alpha",
     "start:alpha": "node scripts/build.js --alpha --develop",
     "publish-alpha-cdn": "./publish-alpha-cdn.sh",