Update Index.md

Author: Atif0604

Index.md

@@ -52,3 +52,5 @@
 | [Image Filter App]()                                                                                                            |An Awesome Image Filter App written in Html,Css,Javascript and CamanJS.|
 | [Form Validation](https://github.com/Ayushparikh-code/Web-dev-mini-projects/tree/main/form-validation)                         |A basic sign up page with all the validations in javascript.   |     
 | [Age Calculator](https://github.com/Ayushparikh-code/Web-dev-mini-projects/tree/main/age-calculator)                           | A website which can be used to calculate age of a person in days,months and years . |
+| [Double Vertical Slider App]()                           | This App helps to Slide the two different parts of the webpage content at the same time . |
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