Add Issues section to CONTRIBUTING

CONTRIBUTING.md

@@ -2,6 +2,12 @@
 
 Thank you for helping make `scli` better! (And for actually reading the guidelines)
 
+## Issues
+
+- Check logs. When reporting a problem, check if there is a relevant output in the log file (see `--log-file` and `--debug` in `--help`).
+	At a minimum, it will tell you the versions of scli and dependencies used.
+	⚠ Logs might contain personal information. Make sure to remove anything you don't want published on the internet.
+
 ## Pull Requests
 
 - Use `develop` branch as the base for new branches, as well as the 'merge to' branch when creating a new pull request.