Improve pull_request_template.md file

[kgashok]

Review https://github.com/appium/appium/blob/master/.github/PULL_REQUEST_TEMPLATE.md

Discuss which parts are relevant to this project, and add/modify the current template, including moving it to /docs directory.

@Pavithratrdev

[Pavithratrdev]

Sure sir, will do it

[kgashok]

Some other formats:

What does this PR do?

Fixes #<issue_number>

Does your PR introduce any breaking changes? If yes, please list them.

Before submitting

• [ ] Was this discussed/approved via a GitHub issue? (not for typos and docs)
• [ ] Did you read the contributor guideline, Pull Request section?
• [ ] Did you make sure your PR does only one thing, instead of bundling different changes together?
• [ ] Did you make sure to update the documentation with your changes? (if necessary)
• [ ] Did you write any new necessary tests? (not for typos and docs)
• [ ] Did you verify new and existing tests pass locally with your changes?
• [ ] Did you list all the breaking changes introduced by this pull request?
• [ ] Did you update the CHANGELOG? (not for typos, docs, test updates, or internal minor changes/refactorings)

PR review

Anyone in the community is welcome to review the PR. Before you start reviewing make sure you have read Review guidelines. In short, see the following bullet-list:

• [ ] Is this pull request ready for review? (if not, please submit in draft mode)
• [ ] Check that all items from Before submitting are resolved
• [ ] Make sure the title is self-explanatory and the description concisely explains the PR
• [ ] Add labels and milestones (and optionally projects) to the PR so it can be classified

Did you have fun?

Make sure you had fun coding 🙃