Fix numbering for second step

website/README.md

@@ -26,5 +26,5 @@ You should preview all of your changes locally before creating a pull request. T
 **Launch Site Locally**
 
 1. Navigate into your local `terraform` top-level directory and run `make website`.
-3. Open `http://localhost:4567` in your web browser. While the preview is running, you can edit pages and Middleman will automatically rebuild them.
-4. When you're done with the preview, press `ctrl-C` in your terminal to stop the server.
+2. Open `http://localhost:4567` in your web browser. While the preview is running, you can edit pages and Middleman will automatically rebuild them.
+3. When you're done with the preview, press `ctrl-C` in your terminal to stop the server.