Merge pull request #3097 from bambery/patch-3

Update part7a.md command to run cloned app for exercise 7.1

Author: mluukkai

src/content/7/en/part7a.md

@@ -508,7 +508,7 @@ The application starts the usual way, but first, you need to install the depende
 
 ```bash
 npm install
-npm start
+npm run dev
 ```
 
 #### 7.1: routed anecdotes, step1