Create pull_request_template.md

[victoriacheng15]

As the title suggested, added a pull request template for the repo.

For the checklist, I am not how much requirement you would like to see, but I listed 3 for now. This can always improve or adjust as the project is growing.

Let me know if you have anything else to add or feedback.

Close #43

[TimDaub]

@il3ven I'm assigning you to sort this out. I'll go with your judgment.

[il3ven]

@TimDaub My honest opinion is that we don't need a template. It's a solution for a problem we don't have. Let people structure the description of the PR however they want. The other use of the template is the checklist but we already have a CI for that.

@TimDaub If you disagree with me, no problem. All this is very subjective. We can re-open this PR.

@victoriacheng15 Thank you for your contribution. We appreciate it but sorry for closing this. If you are looking to make more contributions we have a few good first issue in the neume-network repository. May I recommend neume-network/strategies#41.

[TimDaub]

actually I agree with you. We don't have a problem with PR descriptions.