Better sh hl

content/3.serveex/2.core/1.installation.md

@@ -20,15 +20,15 @@ main:
 4. [Install Debian and Set Up SSH](https://www.howtoforge.com/tutorial/debian-minimal-server/)
 5. Install sudo and add a user to the sudo group for administrative privileges.
     Log in as root:
-    ```shell
+    ```sh
     su -
     ```
     Enter your password, then type:
-    ```shell
+    ```sh
     apt install sudo
     ```
     Add the user to the sudo group:
-    ```shell
+    ```sh
     adduser <username> sudo
     ```
 
@@ -42,7 +42,7 @@ main:
 ## Must-Have CLI Apps
 ---
 Some essential apps you’ll likely need at some point, so might as well install them early:
-```shell
+```sh
 sudo apt update
 sudo apt upgrade
 sudo apt install vim btop ranger git duf neofetch samba cifs-utils tree unzip ufw
@@ -65,7 +65,7 @@ Additionally:
 
 ### File Transfer via rsync
 
-```shell
+```sh
 sudo rsync -avhHSP /source /destination
 ```
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