message: github: add more details to bug report template
diff: @@ -6,7 +6,7 @@ labels: "bug"
  assignees: ""
  ---
  -Before you report, please take a look at [Troubleshooting](https://clementtsang.github.io/bottom/troubleshooting) to see if there's already an answer to your problem.
  +Before you report, please take a look at [Troubleshooting](https://clementtsang.github.io/bottom/troubleshooting) to see if there's already an answer to your problem. Also check out [existing issues](https://github.com/ClementTsang/bottom/issues) and [known problems](https://clementtsang.github.io/bottom/support/#known-problems) to see if your problem is already reported/known.
  Also, **please fill in all fields if possible** - if the issue is too hard to reproduce or vague, it may not be fixed!
  