fix link to sandbox (no https)
diff --git a/index.html b/index.html
index 74c6a0c..c7b5ed3 100644
--- a/index.html
+++ b/index.html
@@ -28,7 +28,6 @@
<script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
<script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
-
</head>
<body id="page-top" class="index">
@@ -132,7 +131,7 @@
<h3>Discover & Test</h3>
<p>In order to help you test your LWM2M solutions quickly, the Leshan project provides a Lightweight M2M standalone server you can freely connect to for evaluation purposes.</p>
<div class="text-center button-links">
- <a href="//leshan.eclipse.org" target="_blank" class="btn btn-default btn-lg" role="button">
+ <a href="http://leshan.eclipse.org" target="_blank" class="btn btn-default btn-lg" role="button">
<i class="fa fa-server"></i> LWM2M sandbox
</a>
</div>