Update text.md

I am not a good developer, and I spent a long time trying to figure out the difference between the code with and without the bind. It probably seems clear that I should've figured it out, but adding a statement to show how to invoke the changes might help another person like me. A prompt to type in the DOM could help somebody more quickly pass this level.

site/content/tutorial/06-bindings/05-textarea-inputs/text.md

@@ -1,8 +1,7 @@
 ---
 title: Textarea inputs
 ---
-
-The `<textarea>` element behaves similarly to a text input in Svelte — use `bind:value`:
+Similar to the text input in Svelte, a two-way binding will allow the user to update the value variable when information is updated in the textarea in the DOM. Try typing in the textarea, and then use 'bind:value':
 
 ```html
 <textarea bind:value={value}></textarea>