It will be useful to add one. You can probably find standard templates online. A minima, it should indicate that the PR description needs to explain what has to be tested.
For example in #4 , it would be useful to indicate in the PR description how the PR reviewer should test it.
See https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/creating-a-pull-request-template-for-your-repository
It will be useful to add one. You can probably find standard templates online. A minima, it should indicate that the PR description needs to explain what has to be tested.
For example in #4 , it would be useful to indicate in the PR description how the PR reviewer should test it.