site: change "on to" to "onto" in tutorial 03 (#5386)

site/content/tutorial/03-props/03-spread-props/text.md

@@ -2,10 +2,10 @@
 title: Spread props
 ---
 
-If you have an object of properties, you can 'spread' them on to a component instead of specifying each one:
+If you have an object of properties, you can 'spread' them onto a component instead of specifying each one:
 
 ```html
 <Info {...pkg}/>
 ```
 
-> Conversely, if you need to reference all the props that were passed into a component, including ones that weren't declared with `export`, you can do so by accessing `$$props` directly. It's not generally recommended, as it's difficult for Svelte to optimise, but it's useful in rare cases.
+> Conversely, if you need to reference all the props that were passed into a component, including ones that weren't declared with `export`, you can do so by accessing `$$props` directly. It's not generally recommended, as it's difficult for Svelte to optimise, but it's useful in rare cases.