update steps

Author: dlepow

articles/api-center/enable-api-center-portal.md

@@ -103,20 +103,20 @@ Follow these steps to build and test the API Center portal locally.
     }
     ```
 
-1. Start the development server to test the portal locally.
+1. Install required packages.
 
     ```bash
-    npm start
+    npm install
     ```
 
-    Browse to the portal at `https://localhost:5173`.
-
-1. When you're ready to build the portal for production, run the following command.
+1. Start the development server. The following command will start the portal in development mode running locally:
 
     ```bash
-    npm run build
+    npm start
     ```
 
+    Browse to the portal at `https://localhost:5173`.
+
 ## Deploy to Azure
 
 For steps to deploy the portal to Azure Static Web Apps, see the [API Center portal starter](https://github.com/Azure/APICenter-Portal-Starter.git) repository.