docs: added TEST_PR_TEMPLATE

[priyanshuone6]

Description

Added TEST_PR_TEMPLATE.md in docs to test the pull requests.

Fixes #1020

Type of Change:

Delete irrelevant options.

• Documentation

Checklist:

Delete irrelevant options.

• My PR follows the style guidelines of this project
• I have performed a self-review of my own code or materials
• I have commented on my code or provided relevant documentation, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation

[gaurivn]

@priyanshuone6, please edit your PR message to include description, solution, and/or mocks, do refer the other PRs, and see how it's done.