chore(ci): create a pull request template (#70)

.github/pull_request_template.md

@@ -0,0 +1,20 @@
+### Issues Fixed
+
+Include a list of issues that this pull request fixes.
+
+### Description
+
+Provide a brief description of the changes that you have made.
+
+### Checklist
+
+- [ ] I have performed a self-review of my own code.
+- [ ] New and existing unit tests pass locally and on CI with my changes.
+- [ ] I have tested my changes on Google Chrome.
+- [ ] I have tested my changes on Mozilla Firefox.
+- [ ] I added a documentation for the changes I have made (when necessary).
+
+### Additional Information
+
+Include any additional information that you think is necessary for this pull request,
+including screenshots of the changes that you have made.