* created troubleshooting guide for mysql data source plugin Signed-off-by: Usman Ahmad <usman.ahmad@grafana.com> * Apply suggestions from code review thanks for the code review Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com> * rename file from _index.md to index.md Signed-off-by: Usman Ahmad <usman.ahmad@grafana.com> * Update docs/sources/datasources/mysql/troubleshoot/index.md --------- Signed-off-by: Usman Ahmad <usman.ahmad@grafana.com> Co-authored-by: Christopher Moyer <35463610+chri2547@users.noreply.github.com>