Added feature to description

data/com.jeffser.Alpaca.metainfo.xml.in

@@ -15,6 +15,7 @@
 	    <li>Pull and delete models from the app</li>
 	    <li>Have multiple conversations</li>
 	    <li>Image recognition (Only available with compatible models)</li>
+	    <li>Plain text documents recognition</li>
 	    <li>Import and export chats</li>
 	  </ul>
     <p>Disclaimer</p>