Fix incorrect inner component reference (#6044)

The inner component is `EditForm`, not `EditContact`.

Author: tdd

src/content/learn/you-might-not-need-an-effect.md

@@ -1438,7 +1438,7 @@ It would be nice if there was a way to tell React that when `savedContact.id` is
 
 <Solution>
 
-Split the `EditContact` component in two. Move all the form state into the inner `EditForm` component. Export the outer `EditContact` component, and make it pass `savedContact.id` as the `key` to the inner `EditContact` component. As a result, the inner `EditForm` component resets all of the form state and recreates the DOM whenever you select a different contact.
+Split the `EditContact` component in two. Move all the form state into the inner `EditForm` component. Export the outer `EditContact` component, and make it pass `savedContact.id` as the `key` to the inner `EditForm` component. As a result, the inner `EditForm` component resets all of the form state and recreates the DOM whenever you select a different contact.
 
 <Sandpack>