Update README.md

Author: dmason30

README.md

@@ -87,15 +87,15 @@ $post->load('featuredImage');
 ```
 Prefer using `sync` instead of `save` when updating your relation. 
 ```php
-$post->featuredImage()->sync([FeaturedImage::find(123)]);
-$post->featuredImage()->sync([FeaturedImage::find(456)]);
+$post->featuredImage()->sync([Image::find(123)]);
+$post->featuredImage()->sync([Image::find(456)]);
 $post->images->count(); // 1 row :)
 ```
 
 :x: DO NOT use `save` it will follow `morphToMany` behaviour and create a new row instead of updating an existing one.
 ```php
-$post->featuredImage()->save(FeaturedImage::find(123));
-$post->featuredImage()->save(FeaturedImage::find(456));
+$post->featuredImage()->save(Image::find(123));
+$post->featuredImage()->save(Image::find(456));
 $post->images->count(); // 2 rows :(
 ```