Added use case label to be applied

Author: csharpfritz

.github/ISSUE_TEMPLATE/use-case.md

@@ -2,7 +2,7 @@
 name: Use Case
 about: Sample use case for an ASPX page that should be supported
 title: 'Use Case:'
-labels: ''
+labels: 'use case'
 assignees: ''
 
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