Update README with section about PHP server

README.md

@@ -30,6 +30,17 @@ NODE_ENV=production \
     --minify
 ```
 
+## Serving the site
+
+Use the PHP commandline server to serve the site locally.
+
+```shell
+php -S localhost:8000 -t ./public
+```
+
+
+
+
 ## Used assets
 
 - Background pattern "Topography" from [Hero Patterns](https://heropatterns.com)