Update PULL_REQUEST_TEMPLATE.md

Enhanced the pull-request template

PR Description 📜

Please include summary related to the issue you have fixed and describe your PR in brief over here by specifying the issue number on which you were working below Fixes # closes #41

Mark the task you have completed ✅

[x] I follow CONTRIBUTING GUIDELINE & CODE OF CONDUCT of this project.
[x] I have performed a self-review of my own code or work.
[x] I have commented my code, particularly in hard-to-understand areas.
[x] My changes generates no new warnings.
[x] I have followed proper naming convention showed in CONTRIBUTING GUIDELINE
[x] I have added screenshot for website preview in assets/images
[x] I have added README.md in my folder

Indie-Kart / ecommerce-store

Update PULL_REQUEST_TEMPLATE.md #42

PR Description 📜

Mark the task you have completed ✅

Add your screenshots(Optional) 📸

Thank you soo much for contributing to our repository 💗