display_markup.t: now we do <h1>s

t/display_markup.t

@@ -35,7 +35,7 @@ two
 LINES
 
 my $expectedlines = <<'LINES';
-<h3>Hello</h3>
+<h1>Hello</h1>
 
 <p>Some stuff.</p>
 
@@ -60,6 +60,10 @@ ok(
   'line_parse works'
 );
 
+if ($result ne $expectedlines) {
+  diag($result);
+}
+
 # diag($result);
 
 1;