add pull request template

Author: ckcollab

.github/pull_request_template.md

@@ -0,0 +1,35 @@
+# Template
+This is a template. While not all sections are necessary, depending on the size and complexity of the PR,
+more information is better. 
+
+# @ mention of reviewers
+...
+
+
+# A brief description of the purpose of the changes contained in this PR.
+...
+
+
+# Known issues to be addressed in a separate PR
+...
+
+
+# Hand testing
+- [ ] add checklist here
+
+
+# Any relevant files for testing
+[link]('#') to any relevant files (or drag and drop into github)
+
+
+# Misc. comments
+...
+
+
+# Checklist
+- [ ] Code review by me 
+- [ ] Hand tested by me 
+- [ ] I'm proud of my work
+- [ ] Code review by reviewer
+- [ ] Hand tested by reviewer
+- [ ] Ready to merge