Media: Improve inline docs for `wp_filter_content_tags()`.

Props johnstonphilip.
See #44427.
Built from https://develop.svn.wordpress.org/trunk@48648


git-svn-id: http://core.svn.wordpress.org/trunk@48410 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/media.php

@@ -1705,9 +1705,10 @@ function wp_lazy_loading_enabled( $tag_name, $context ) {
 }
 
 /**
- * Filters specific tags in post content and modifies their markup.
- *
- * This function adds `srcset`, `sizes`, and `loading` attributes to `img` HTML tags.
+ * Modifies specific HTML tags in post content to include new browser and HTML technologies
+ * that may not have existed at the time of post creation. These modifications currently include
+ * adding `srcset`, `sizes`, and `loading` attributes to `img` HTML tags. Future similar
+ * optimizations should be added/expected here.
  *
  * @since 5.5.0
  *

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-beta4-48647';
+$wp_version = '5.5-beta4-48648';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.