Update README.md

Author: modularcoder

README.md

@@ -8,8 +8,7 @@ Free [MaterialUI](https://material-ui.com/) dashboard theme implemented by using
 
 </div>
 
-[![demo](https://user-images.githubusercontent.com/3959008/74496175-5519e000-4ef3-11ea-9a56-6da9d4e4f69f.png)](https://modular-material-admin-react.modularcode.io/#/)
-[![demo](https://user-images.githubusercontent.com/3959008/74492959-13d10280-4eea-11ea-8765-408636115522.png)](https://modular-material-admin-react.modularcode.io/#/)
+[![demo](https://user-images.githubusercontent.com/3959008/79408874-73f92900-7fad-11ea-9266-465637350d92.png)](https://modular-material-admin-react.modularcode.io/#/)
 
 
 <p align="center">