Modified Installing method on Debian or Ubuntu

[mmt-10]

https://grafana.com/docs/grafana/latest/installation/debian/
official apt-get installing method is using apt-key.
but apt-key is deprecated.
So, I modified it as below.

sudo apt-get install -y apt-transport-https
sudo apt-get install -y software-properties-common wget
wget -q -O - https://packages.grafana.com/gpg.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/grafana.gpg > /dev/null
echo "deb [signed-by=/etc/apt/trusted.gpg.d/grafana.gpg] https://packages.grafana.com/oss/deb stable main" | sudo tee -a /etc/apt/sources.list.d/grafana.list > /dev/null
sudo apt-get update
sudo apt-get install grafana

[gelicia]

Hello, as you may have heard, we are transitioning away from using discussions to discuss feature requests. Due to the age and number of responses to this discussion, we are deciding to close it. If this is something you would like to see in Grafana, feel free to open an issue so the discussion can continue. Thank you!