Update _index.md (#61662)
* Update _index.md
The troubleshooting page was missing how to send dashboard panels for debugging so added it here.
* Update docs/sources/troubleshooting/_index.md
* Update docs/sources/troubleshooting/_index.md
* removed empty lines
Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>
Co-authored-by: Chris Moyer <chris.moyer@grafana.com>
(cherry picked from commit 6c6c0f5402)
Co-authored-by: Usman Ahmad <69509548+usmangt@users.noreply.github.com>