Update bug_report.md

.github/ISSUE_TEMPLATE/bug_report.md

@@ -16,6 +16,12 @@ Steps to reproduce the behavior:
 2. Tap on '....'
 3. 
 
+**Affected versions**
+Please try to reproduce the problem on:
+* Latest Stable [Release](https://github.com/eried/portapack-mayhem/releases/latest)
+* Original PortaPack (if possible; this firmware is also included inside the Release package)
+* Any previous version (if possible; i.e. you remember this working on a [previous](https://github.com/eried/portapack-mayhem/releases/) Release)
+
 **Expected behavior**
 A clear and concise description of what you expected to happen.