Comment tweak

src/shell.html

@@ -241,8 +241,8 @@ jwE50AGjLCVuS8Yt4H7OgZLKK5EKOsLviEWJSL/+0uMi7gLUSBseYwqEbXvSHCec1CJvZPyHCmYQffaB
             canvas: (function() {
                 var canvas = document.querySelector('#canvas');
 
-                // As a default initial behavior, pop up an alert when webgl context is lost. To make your
-                // application robust, you may want to override this behavior before shipping!
+                // As a default initial behavior, pop up an alert when webgl context is lost.
+                // To make your application robust, you may want to override this behavior before shipping!
                 // See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
                 canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);