Editor: Document the arguments for registering a block style.

See #55646

Built from https://develop.svn.wordpress.org/trunk@53892


git-svn-id: http://core.svn.wordpress.org/trunk@53451 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks.php

@@ -991,6 +991,8 @@ function block_version( $content ) {
  *
  * @since 5.3.0
  *
+ * @link https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/
+ *
  * @param string $block_name       Block type name including namespace.
  * @param array  $style_properties Array containing the properties of the style name,
  *                                 label, style (name of the stylesheet to be enqueued),