Update vue3.md

The `npm run serve` script doesn't exist in vue.

docs/installation/vue3.md

@@ -33,7 +33,7 @@ Okay, enough of the boring boilerplate work. Let’s finally install Tiptap! For
 npm install @tiptap/vue-3 @tiptap/pm @tiptap/starter-kit
 ```
 
-If you followed step 1 and 2, you can now start your project with `npm run serve`, and open [http://localhost:8080](http://localhost:8080) in your favorite browser. This might be different, if you’re working with an existing project.
+If you followed step 1 and 2, you can now start your project with `npm run dev`, and open [http://localhost:8080](http://localhost:8080) in your favorite browser. This might be different, if you’re working with an existing project.
 
 ## 3. Create a new component
 To actually start using Tiptap, you’ll need to add a new component to your app. Let’s call it `Tiptap` and put the following example code in `components/Tiptap.vue`.