index.html.tmpl: set viewport

Author: domenkozar

servant-swagger-ui/index.html.tmpl

@@ -7,6 +7,7 @@
     <link rel="stylesheet" type="text/css" href="./swagger-ui.css" />
     <link rel="icon" type="image/png" href="./favicon-32x32.png" sizes="32x32" />
     <link rel="icon" type="image/png" href="./favicon-16x16.png" sizes="16x16" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <!-- Script to reload .../swagger-ui to .../swagger-ui/ -->
     <script type="text/javascript">
       if (window.location.href.match(/\/index.html\/$/)) {