Added meta description tag (#2463)

Author: odeimaiz

services/web/client/source/boot/index.html

@@ -35,6 +35,7 @@
   </style>
 
   <title>${appTitle}</title>
+  <meta name="description" content="Open Online Simulations for Stimulating Peripheral Activity to Relieve Conditions (<i>o<sup>2</sup>S<sup>2</sup>PARC</i>)" />
 
   <noscript>
     <meta http-equiv="refresh" content="0; url=nojs.html"/>