Update bug_report.md

Add section about log files.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -20,6 +20,9 @@ Steps to reproduce the behavior:
 **Expected behavior**
 A clear and concise description of what you expected to happen.
 
+**Logs**
+Please paste any log errors.
+
 **Screenshots**
 If applicable, add screenshots to help explain your problem.