pull_request_template.md

What does this implement/fix? Explain your changes. Please explain your changes in addition to your commit messages.

Does this close any currently open issues? If yes, please mention, else ignore.

Screenshots If applicable, add screenshots of end result.

Any other comments?

Where has this been tested?

• React native Version: [e.g. 0.59.8]
• React Version: [e.g. 16.8.3]
• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Version [e.g. 22]