feat: New PR Template

.github/pull_request_template.md

@@ -1,9 +1,21 @@
-**Why**
-<!-- What is the objective of this work? -->
+**Issue**
+
+- Link:
+- Summary:
 
 **How**
 <!-- What steps were taken in this work? -->
 <!-- Its encouraged to copy information from other places even if it seems redundant -->
 
+**Screenshots**
+<!-- Include images, if possible. -->
+
 **References**
-<!-- Links to related issues, relevant documentation, etc. -->
+<!-- Links to related issues, relevant documentation, etc. -->
+
+**Checklist**
+
+- [ ] Tests added
+- [ ] Cleaned up commit history (rebase!)
+- [ ] Documentation added
+- [ ] Thought about variable and method names