Description page is enhanced

[singhkaran202]

closes #32

Following advancements are made:-

1. Each set of product item have a description added to the product description page. (Here with the description page I am referring to the sproducts.html file )
2. On this page each product can be seen zoomed and clear by clicking the particular item
3. This page can be accessed by clicking on any product on the shop page.
4. It has a direct going-to-cart button to check out a product.

   Related Screenshots are below:-

   Product Description page

[singhkaran202]

Hello @abhijit49, The code has been approved by @basantasunar, may I know the reason of not merging the pull request, please?