Fix missing space in "Navigation-Refresh" session

Author: yezhizhen

index.html

@@ -3272,7 +3272,7 @@ <h3><dfn>Refresh</dfn></h3>
   </ol>
 
  <li><p><a>Set the current browsing context</a>
-  with <var>session</var> and <var>session</var>&apos;s<a>current
+  with <var>session</var> and <var>session</var>&apos;s <a>current
   top-level browsing context</a>.
 
  <li><p>Return <a>success</a> with data <a><code>null</code></a>.
@@ -11525,7 +11525,8 @@ <h2>Acknowledgements</h2>
 <!-- Simon Stewart --> <a href=http://www.rocketpoweredjetpants.com/>Simon Stewart</a>,
 <!-- Sri Harsha --> Sri Harsha,
 <!-- Titus Fortner --> Titus Fortner,
-<!-- Vangelis Katsikaros --> and Vangelis Katsikaros.
+<!-- Vangelis Katsikaros --> Vangelis Katsikaros,
+<!-- Zhizhen Ye --> and Zhizhen Ye.
 
 <!-- ~~~ end sort ~~~ -->