[Feature Request]: add Grphana tutorial

[mpfans]

Is your feature request related to a problem? Please describe.

my server many players, too low hardware resources and enough bandwidth, but the Update time diff value is too large, resulting in spell delay

Describe the solution you'd like

At present, there is no complete tutorial for AC core to use Grphana. It is recommended to add . Thank

Describe alternatives you've considered

none

Additional context

No response

[Kitzunu]

https://www.azerothcore.org/wiki/monitoring-azerothcore-with-grafana