Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,9 @@
 ---
 name: Bug report
 about: Create a report to help us improve
+title: ''
+labels: 't/bug :bug:'
+assignees: ''
 
 ---
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,6 +1,9 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
+title: ''
+labels: t/enhancement ➕
+assignees: ''
 
 ---
 

.github/ISSUE_TEMPLATE/spec.md

@@ -1,6 +1,9 @@
 ---
 name: Spec
 about: An official specification for enhancements
+title: ''
+labels: ''
+assignees: ''
 
 ---