Update default.html

Author: taowen

_layouts/default.html

@@ -41,7 +41,7 @@ <h2>Fastest JSON parser ever</h2>
 
         <aside id="sidebar">
             <a href="https://github.com/json-iterator/java" class="button">
-                <small>jsoniter</small>Java 0.9.18</a>
+                <small>jsoniter</small>Java 0.9.19</a>
             <a href="https://github.com/json-iterator/go" class="button">
                 <small>jsoniter</small>Go 1.0.4</a>
             <p>This document is also available as</p>