Cleaned up GitHub issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,5 +1,5 @@
 ---
-name: Bug report
+name: Bug Report
 about: Report a reproducible bug in the current release of NetBox
 
 ---

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,5 +1,5 @@
 ---
-name: Feature request
+name: Feature Request
 about: Propose a new NetBox feature or enhancement
 
 ---

.github/ISSUE_TEMPLATE/housekeeping.md

@@ -14,4 +14,4 @@ about: A change pertaining to the codebase itself
 
 
 <!-- Provide justification for the proposed change(s). -->
-### Justification -->
+### Justification