Documentation: Add 'template' arg documentation

Add inline documentation for the 'template' arg accepted by
register_post_type().

Props milana_cap.
See #46261.

Built from https://develop.svn.wordpress.org/trunk@49041


git-svn-id: http://core.svn.wordpress.org/trunk@48803 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/post.php

@@ -1407,6 +1407,9 @@ function get_post_types( $args = array(), $output = 'names', $operator = 'and' )
  *                                              to the user will *not* be trashed or deleted. If not set (the default),
  *                                              posts are trashed if post_type_supports('author'). Otherwise posts
  *                                              are not trashed or deleted. Default null.
+ *     @type array       $template              Array of blocks to use as the default initial state for an editor
+ *                                              session. Each item should be an array containing block name and
+ *                                              optional attributes.
  *     @type bool        $_builtin              FOR INTERNAL USE ONLY! True if this post type is a native or
  *                                              "built-in" post_type. Default false.
  *     @type string      $_edit_link            FOR INTERNAL USE ONLY! URL segment to use for edit link of

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49040';
+$wp_version = '5.6-alpha-49041';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.