Fixed api doc

Author: killme2008

lib/search.js

@@ -4,8 +4,16 @@
   var _ = AV._;
 
   /**
-   * A builder to generate sort string for app searching.
+   * A builder to generate sort string for app searching.For example:
+   * <pre><code>
+   *   var builder = new AV.SearchSortBuilder();
+   *   builder.ascending('key1').descending('key2','max');
+   *   var query = new AV.SearchQuery('Player');
+   *   query.sortBy(builder);
+   *   query.find().then ...
+   * </code></pre>
    * @class
+   * @since 0.5.1
    */
   AV.SearchSortBuilder = function() {
     this._sortFields = [];
@@ -99,13 +107,13 @@
    *   });
    *
    * </code></pre>
-   * Visite <a href='https://leancloud.cn/docs/app_search_guide.html>App Searching Guide</a>
+   * Visite <a href='https://leancloud.cn/docs/app_search_guide.html'>App Searching Guide</a>
    * for more details.
    * @class
    * @since 0.5.1
    *
    */
-  AV.SearchQuery = AV.Query._extend(/** @lends AV.InboxQuery.prototype */{
+  AV.SearchQuery = AV.Query._extend(/** @lends AV.SearchQuery.prototype */{
      _sid: null,
      _hits:  0,
      _queryString: null,