Merge pull request #484 from shailesh-ladumor/patch-1

doc: add tutorial on readme

Author: oscarotero

README.md

@@ -24,6 +24,10 @@ Requirements:
 
 http://oscarotero.com/embed/demo
 
+## Video Tutorial
+ [<img src="https://img.youtube.com/vi/4YCLRpKY1cs/0.jpg" width="250">](https://youtu.be/4YCLRpKY1cs)
+ 
+
 ## Installation
 
 This package is installable and autoloadable via Composer as [embed/embed](https://packagist.org/packages/embed/embed).