Update issue templates

Author: andrewosh

.github/ISSUE_TEMPLATE/bug_report.md

@@ -13,6 +13,9 @@ A clear and concise description of what the bug is.
 **To Reproduce**
 Steps to reproduce the behavior.
 
+**Expected Behavior**
+What did you expect to happen?
+
 ** OS **
 
 ** Node version **