Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

 ---
 name: Bug report
 about: Create a report to help us improve
-title: ''
+title: "[Bug]"
 labels: bug
 assignees: ''
 

.github/ISSUE_TEMPLATE/feature_request.md

 ---
 name: Feature request
 about: Suggest an idea for this project
-title: ''
+title: "[RFE]"
 labels: RFE
 assignees: ''
 

.github/ISSUE_TEMPLATE/question.md

 ---
 name: Question
 about: For support
-title: ''
+title: "[Question]"
 labels: question
 assignees: ''