[css-snap-size] Update sample

Author: kojiishi

css-snap-size/examples/snap-height.html

@@ -140,8 +140,12 @@ <h2>A long multi-line heading</h2>
 }
 
 function checkChrome(min) {
-  var minText = '<a href="https://www.google.com/chrome/browser/canary.html">Chrome Canary</a>, '
-    + min.join(".") + " or later";
+  var minText = [
+    ["Chrome Beta", "https://www.google.com/chrome/browser/beta.html"],
+    ["Chrome Dev channel", "https://www.google.com/chrome/browser/desktop/index.html?extra=devchannel"],
+    ["Chrome Canary", "https://www.google.com/chrome/browser/canary.html"],
+  ].map(function (d) { return '<a href="' + d[1] + '">' + d[0] + '</a>'})
+  .join(" or ") + ", " + min.join(".") + " or later";
   var chrome = /Chrome\/([\d.]+)/.exec(navigator.userAgent);
   if (!chrome)
     return "Open this page in " + minText + ".";