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readme.md

@@ -1,11 +1,12 @@
 [![Published on webcomponents.org](https://img.shields.io/badge/webcomponents.org-published-blue.svg)](https://www.webcomponents.org/element/owner/my-element)
+
 # alfa-clock
 
 Polymer web component to display a clock.
 
 <img src="clock.png">
 
-## use example
+## use example:
 
 ```html
    <link rel="import" href="alfa-clock/alfa-clock.html">
@@ -53,5 +54,18 @@ Examples of colors:
 --face-filter: invert(.5) sepia(1) saturate(5) hue-rotate(60deg);  /* green */
 --face-filter: invert(.5) sepia(5) saturate(25) hue-rotate(-45deg); /* red */
 ```
-## Requirements
-Modern Browser supporting CSS3, tested with Polymer 2 and Chrome
+
+## Demo
+
+<!--
+```
+<custom-element-demo>
+  <template>
+    <link rel="import" href="alfa-clock.html">
+  </template>
+</custom-element-demo>
+```
+-->
+```html
+<alfa-clock></alfa-clock>
+```