Update technical_improvement.md

Author: garethyr

.github/ISSUE_TEMPLATE/technical_improvement.md

@@ -7,11 +7,11 @@ assignees: ''
 
 ---
 
-**Describe the Problem**
-A clear and concise description of what is wrong with the code or design, i.e. what needs improving.
+**Describe the Problem and Suggested Improvement**
+A clear and concise description of what is wrong with the code and/or design, and how you think it should be improved.
 
-**Describe the Improvement**
-A clear and concise description of how you think the improvement should work.
+**Describe Additional Work Required Before Improvement Can be Made**
+A clear and concise description of any additional work or research or investigation you think will be necessary before this improvement can be made.
 
 **Additional context**
 Add any other context or technical improvement here. This can include line numbers, links to useful discussions/articles/tutorials, etc.