fix(tutorial): more precise explanation

site/content/tutorial/05-events/04-component-events/text.md

@@ -20,6 +20,8 @@ Components can also dispatch events. To do so, they must create an event dispatc
 
 > `createEventDispatcher` must be called when the component is first instantiated — you can't do it later inside e.g. a `setTimeout` callback. This links `dispatch` to the component instance.
 
-Notice how the `App.svelte` component, that is including `Inner.svelte`, is listening to the messages dispatched by `Inner` thanks to the `on:message` attribute.
+Notice how the `App.svelte` component, that is including `Inner.svelte`, is listening to the messages dispatched by `Inner` thanks to the `on:message` attribute. This attribute is named with `on:` followed by the event name that we are dispatching (here, `message`).
 
-> Without this attribute, messages would still be dispatched, but the App would not react to it. Try removing the `on:message` attribute and pressing the button again!
+Without this attribute, messages would still be dispatched, but the App would not react to it. You can try removing the `on:message` attribute and pressing the button again.
+
+> You can also try changing the event name to anything you like. For instance, change `dispatch('message')` to `dispatch('myevent')` in `Inner.svelte` and change the attribute name from `on:message` to `on:myevent` in the `App.svelte` component. This still works!