Add "Video Profile" to bug report template

Requests MediaInfo data on relevant video files (with instructions on how to collect and post), when reporting bugs

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -27,5 +27,13 @@ If applicable, add screenshots to help explain your problem.
 **Logs**
 If you are experiencing a crash, please collect and attach logs of the problem.
 
+**Video Profile**
+If the problems you are experiencing are known to be, or may possibly be, related
+to a specific format video file being used in OpenShot, please consider generating
+a [MediaInfo](https://mediaarea.net/en/MediaInfo) profile and including it with your
+report. Select View > Text from the menu to bring up a plaintext report, and attach
+or paste it into this report. (If copy/pasting, consider adding the profile as an
+additional comment after you post this initial report.)
+
 **Additional context**
 Add any other context about the problem here.