Help/About: Typo correction in the Media Library help tab text.

Follow-up to [53586].

Props SergeyBiryukov.
Fixes #55800.


git-svn-id: https://develop.svn.wordpress.org/trunk@53587 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/upload.php

@@ -241,7 +241,7 @@
 		'content' =>
 				'<p>' . __( 'Hovering over a row reveals action links that allow you to manage media items. You can perform the following actions:' ) . '</p>' .
 				'<ul>' .
-					'<li>' . __( '<strong>Edit</strong> takes you to simple screen to edit that individual file&#8217;s metadata. You can also reach that screen by clicking on the media file name or thumbnail.' ) . '</li>' .
+					'<li>' . __( '<strong>Edit</strong> takes you to a simple screen to edit that individual file&#8217;s metadata. You can also reach that screen by clicking on the media file name or thumbnail.' ) . '</li>' .
 					'<li>' . __( '<strong>Delete Permanently</strong> will delete the file from the media library (as well as from any posts to which it is currently attached).' ) . '</li>' .
 					'<li>' . __( '<strong>View</strong> will take you to a public display page for that file.' ) . '</li>' .
 					'<li>' . __( '<strong>Copy URL to clipboard</strong> copies the URL for the media file to your clipboard.' ) . '</li>' .