Update README.md

Author: ManukMinasyan

README.md

@@ -16,7 +16,7 @@ Demo: <a href="https://y3jnxov469.codesandbox.io/" target="_blank">https://y3jnx
 
 [![Edit VueJS Functional Calendar Component](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/980jov4m4p?fontsize=14&hidenavigation=1)
 
-<img src="https://manukminasyan.github.io/vue-functional-calendar/public/demo.png"/>
+<img src="https://raw.githubusercontent.com/ManukMinasyan/vue-functional-calendar/master/public/demo.png"/>
 
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