Fix <ruby> example that was missing some closing tags

Author: hax

source

@@ -20139,9 +20139,9 @@ this specification: the <abbr>WHATWG</abbr> and the
      <p>In this contrived example, some symbols are given names in English and French.
 
      <pre>&lt;ruby>
- &#x2665; &lt;rt> Heart &lt;rt lang=fr> C&oelig;ur
- &#x2618; &lt;rt> Shamrock &lt;rt lang=fr> Tr&egrave;fle
- &#x2736; &lt;rt> Star &lt;rt lang=fr> &Eacute;toile
+ &#x2665; &lt;rt> Heart &lt;rt lang=fr> C&oelig;ur &lt;/rt>
+ &#x2618; &lt;rt> Shamrock &lt;rt lang=fr> Tr&egrave;fle &lt;/rt>
+ &#x2736; &lt;rt> Star &lt;rt lang=fr> &Eacute;toile &lt;/rt>
 &lt;/ruby></pre>
 
     </div>
@@ -120853,6 +120853,7 @@ INSERT INTERFACES HERE
   Shanti Rao,
   Shaun Inman,
   Shiino Yuki, <!-- yuki3 on GitHub -->
+  贺师俊 (HE Shi-Jun), <!-- hax on GitHub -->
   Shiki Okasaka,
   Shubheksha Jalan,
   Sierk Bornemann,