Update README.md

Author: daikoz

README.md

@@ -8,6 +8,10 @@ Overall, SQLWrapper is a handy tool for making SQL code easier to work with, sav
 
 ## Getting started with package NuGet Daikoz.SQLWrapper
 
+**Video of demonstration:**
+
+[![Watch the video](https://img.youtube.com/vi/xEeWnESZki0/hqdefault.jpg)](https://www.youtube.com/watch?v=xEeWnESZki0)
+
 The .NET package NuGet [Daikoz.SQLWrapper](https://www.nuget.org/packages/Daikoz.SQLWrapper) integrate SQLWrapper in build process of our .NET project.
 
 1. Create your .NET project