show caption tag in example (jsdoc/jsdoc#944)

Author: hegemonic

content/en/tags-example.md

@@ -39,7 +39,7 @@ Examples can also be captioned using `<caption></caption>` after the @example ta
 ```js
 /**
  * Solves equations of the form a * x = b
- * @example <caption>Example usage of method1.</caption>
+ * @example &lt;caption>Example usage of method1.&lt;/caption>
  * // returns 2
  * globalNS.method1(5, 10);
  * @returns {Number} Returns the value of x for the equation.

tags-example.html

@@ -55,7 +55,7 @@ <h2 id="examples">Examples</h2>
     <figure>
       <figcaption>Documenting examples with a caption</figcaption><pre class="prettyprint lang-js"><code>/**
  * Solves equations of the form a * x = b
- * @example <caption>Example usage of method1.</caption>
+ * @example &lt;caption>Example usage of method1.&lt;/caption>
  * // returns 2
  * globalNS.method1(5, 10);
  * @returns {Number} Returns the value of x for the equation.