Add current supported languages

Author: hoisjp

samples/browser/Sample.html

@@ -26,12 +26,16 @@ <h2 style="font-weight:500;">Microsoft Cognitive Services</h2>
                 <td align="right">Language:</td>
                 <td align="left">
                     <select id="languageOptions">
+                        <option value="ar-EG">Arabic - EG</option>
                         <option value="zh-CN">Chinese - CN</option>
                         <option value="en-GB">English - GB</option>
                         <option value="en-US" selected="selected">English - US</option>
                         <option value="fr-FR">French - FR</option>
                         <option value="de-DE">German - DE</option>
                         <option value="it-IT">Italian - IT</option>
+                        <option value="ja-JP">Japanese - JP</option>
+                        <option value="pt-BR">Portuguese - BR</option>
+                        <option value="ru-RU">Russian - RU</option>
                         <option value="es-ES">Spanish - ES</option>
                     </select>
                 </td>