fixes application preview alignment

Author: aryanxk02

README.md

@@ -11,6 +11,7 @@
   <img width="170" height="330" src="https://user-images.githubusercontent.com/59761275/138751886-2b1cd61c-77c7-4923-80e9-5d143a385fac.png"/>
   <img width="170" height="330" src="https://user-images.githubusercontent.com/59761275/138753035-8f94887c-e0be-42dd-b43d-22b00f6d73a2.png"/>
   <img width="170" height="330" src="https://user-images.githubusercontent.com/59761275/138753268-cfa19047-bc37-45d1-accf-adb78de6453e.png"/>
+<p align="center">
   <img width="170" height="330" src="https://user-images.githubusercontent.com/59761275/138753375-90986ee4-3476-4981-b448-3d74a97a0300.png"/>
   <img width="170" height="330" src="https://user-images.githubusercontent.com/59761275/138753526-c7d6d80b-74c2-4c57-a983-a6c2bbfa52e9.png"/>