Add spaces to required fields (#162875)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -13,10 +13,10 @@ Does this issue occur when all extensions are disabled?: Yes/No
 
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-- VS Code Version:
-- OS Version:
+- VS Code Version: 
+- OS Version: 
 
 Steps to Reproduce:
 
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+1. 
+2.