Provide better debugging info in issue template

Author: waf

.github/issue_template.md

@@ -1 +1,11 @@
-> If you're reporting an UI issue, make sure you take a screenshot that shows the actual bug.
+**Description of the issue**
+
+> Write your description here!
+
+**Screenshots**
+
+> If applicable, please provide a screenshot of the issue
+
+**Version Information**
+
+> Please provide the output of this PowerShell command: `(Get-Module PSReadline).Version; (Get-Module posh-git).Version`