Docs: Update debian.md (#26100)

* Update debian.md

* Revert "Update debian.md"

This reverts commit 063c1f09d9e490bd514bbd17b84c8bec38379295.

* Update debian.md

* Update debian.md

* Update debian.md

* Update docs/sources/installation/debian.md

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

docs/sources/installation/debian.md

@@ -40,10 +40,20 @@ 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 | sudo apt-key add -
 
+Add this repository for stable releases:
 
-# Alternatively you can add the beta repository, see in the table above
-sudo add-apt-repository "deb https://packages.grafana.com/enterprise/deb stable main"
+```bash
+echo "deb https://packages.grafana.com/enterprise/deb stable main" | sudo tee -a /etc/apt/sources.list.d/grafana.list 
+```
 
+Add this repository if you want beta releases:
+```bash
+echo "deb https://packages.grafana.com/enterprise/deb beta main" | sudo tee -a /etc/apt/sources.list.d/grafana.list 
+```
+
+After you add the repository:
+
+```
 sudo apt-get update
 sudo apt-get install grafana-enterprise
 ```
@@ -54,18 +64,8 @@ sudo apt-get install grafana-enterprise
 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 | sudo apt-key add -
-
-# Alternatively you can add the beta repository, see in the table above
-sudo add-apt-repository "deb https://packages.grafana.com/oss/deb stable main"
-
-sudo apt-get update
-sudo apt-get install grafana
 ```
 
-### Set up repository for ARM
-
-If you have problems using `add-apt-repository`, you can set up the repository without it.
-
 Add this repository for stable releases:
 
 ```bash
@@ -77,6 +77,13 @@ Add this repository if you want beta releases:
 echo "deb https://packages.grafana.com/oss/deb beta main" | sudo tee -a /etc/apt/sources.list.d/grafana.list 
 ```
 
+After you add the repository:
+
+```
+sudo apt-get update
+sudo apt-get install grafana
+```
+
 ### Install .deb package
 
 If you install the `.deb` package, then you will need to manually update Grafana for each new version.