Fix typos in description

Author: yoren

README.txt

@@ -15,8 +15,8 @@ Custom the title, content and set / remove link text in the Featured Image metab
 
 With this plugin, you can custom the Featured Image metabox by:
 
-* Set the tilte text instead of the default "Featured Image".
-* Add instructions for the image, like the image dimenstions.
+* Set the title text instead of the default "Featured Image".
+* Add instructions for the image, like the image dimensions.
 * Set a custom set / remove link text, instead of the default "Set / Remove featured image".
 * Custom the metabox by post types. Each post type has its own custom settings.