Update README.md

Author: ashish8513

README.md

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 <p align="center"><h1 font="10rem" align="center">30 Days JavaScript Challenge</h1>
 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.
 
+must visit this link https://leetcode.com/studyplan/30-days-of-javascript
+
 ![First loading Page](https://github.com/ashish8513/30-days-javascript-leetCode-challenges/blob/main/1day.png)
 
 Challenge Overview