fixed labels in issue templates

.github/ISSUE_TEMPLATE/bug-report-for-adminlte-v2-4-x.md

@@ -2,7 +2,7 @@
 name: Bug report for AdminLTE v2.4.x
 about: Create a report to help us improve AdminLTE v2.4.x
 title: "[BUG]"
-labels: bug
+labels: Bug, v2
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/bug-report-for-adminlte-v3-x.md

@@ -2,7 +2,7 @@
 name: Bug report for AdminLTE v3.x
 about: Create a report to help us improve AdminLTE v3.x
 title: "[BUG]"
-labels: bug
+labels: Bug, v3
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/feature-request-for-adminlte-v3-x.md

@@ -2,7 +2,7 @@
 name: Feature request for AdminLTE v3.x
 about: Suggest an idea for this project
 title: "[FEATURE]"
-labels: enhancement
+labels: Enhancement, v3
 assignees: ''
 
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