Update release number

Author: carlosribas

rnacentral/portal/templates/portal/header.html

@@ -37,7 +37,7 @@
         <span class="icon-bar"></span>
       </button>
       <p class="navbar-text">
-        <span class="badge release-number">v24</span>
+        <span class="badge release-number">v25</span>
       </p>
     </div>
     <div class="navbar-collapse collapse">