feat: add pull request template

Co-authored-by: Arsène FOUGEROUSE <arsene582@gmail.com>
Signed-off-by: Esteban Baron <estebanbaron.pro@gmail.com>

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -0,0 +1,19 @@
+## Description
+
+_Describe your changes in detail here_
+
+Resolves #_Add the issue number that is fixed by this PR (In the form Fixes #12)_
+
+## DOD
+
+Check if your PR fulfills the following [requirements](../../CONTRIBUTING.md).
+
+- [ ] My commits are clean (squashed, rebased and followed our defined conventions).
+- [ ] I have rebase my branch with the latest main branch.
+- [ ] I have tested my feature and written associated unit tests.
+- [ ] Ensure the CI/CD is passing.
+- [ ] I have updated the documentation accordingly.
+
+### When I'm done
+
+When you're ready to merge your PR, remove the `Draft` mode and designate a [faast-rt](https://github.com/orgs/faast-rt/people) member as reviewer.