Update README.md

Author: ashish8513

README.md

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-30 Days JavaScript Challenge
+<p align="center">30 Days JavaScript Challenge
 Welcome to the 30 Days JavaScript Challenge! This repository is designed to help you improve your JavaScript skills through daily coding exercises. Each day, you'll tackle a new challenge to enhance your understanding of core JavaScript concepts.
 
 ![First loading Page](https://github.com/ashish8513/30-days-javascript-leetCode-challenges/blob/main/1day.png)
@@ -47,3 +47,4 @@ Collaboration: Engage with the community for support and feedback.
 
 
 For Any Query Please contact me [email protected]
+</p>