Themes: Make default "read more" link more accessible.

Add an `aria-label` with the post title to make it available for screen readers.

Props Kau-Boy.
Fixes #36572.

git-svn-id: https://develop.svn.wordpress.org/trunk@37706 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/post-template.php

@@ -262,8 +262,17 @@ function get_the_content( $more_link_text = null, $strip_teaser = false ) {
 
 	$post = get_post();
 
-	if ( null === $more_link_text )
-		$more_link_text = __( '(more…)' );
+	if ( null === $more_link_text ) {
+		$more_link_text = sprintf(
+			'<span aria-label="%1$s">%2$s</span>',
+			sprintf(
+				/* translators: %s: Name of current post */
+				__( 'Continue reading %s' ),
+				the_title_attribute( array( 'echo' => false ) )
+			),
+			__( '(more&hellip;)' )
+		);
+	}
 
 	$output = '';
 	$has_teaser = false;