chore(gen): update

Author: SamyOubouaziz

tutorials/installation-uncomplicated-firewall/index.mdx

@@ -21,12 +21,24 @@ UFW, or **[Uncomplicated FireWall](https://en.wikipedia.org/wiki/Uncomplicated_F
 
 - A Scaleway account logged into the [console](https://console.scaleway.com)
 - [Owner](/identity-and-access-management/iam/concepts/#owner) status or [IAM permissions](/identity-and-access-management/iam/concepts/#permission) allowing you to perform actions in the intended Organization
+- An [Instance](/compute/instances/how-to/create-an-instance/) running on Ubuntu Focal Fossa or later
 - An [SSH key](/identity-and-access-management/organizations-and-projects/how-to/create-ssh-key/)
 - `sudo` privileges or access to the root user
 
 ## Installing UFW
 
-UFW is available as a pre-built package in the apt repositories of Ubuntu. It can be easily installed via apt:
+UFW is available as a pre-built package in the apt repositories of Ubuntu. It can be easily installed via `apt`.
+
+1. Connect to your Instance with SSH. In a terminal run:
+    ```
+    ssh root@<your_instance_ip>
+    ```
+2. Update the system and upgrade the software already installed on the Instance.
+    ```
+    apt update && apt upgrade -y
+    ```
+
+3. run the command below to install UFW:
 
   ```code
   sudo apt-get install ufw
@@ -82,7 +94,7 @@ The services running on the machine used in this example need the following port
     ```
 
     <Message type="note">
-      In this case `TCP` has not to be specified, as both, `TCP` and `UDP` are needed.
+      In this case `TCP` has not to be specified, as both `TCP` and `UDP` are needed.
     </Message>
 5. Activate the new rules.
     ```code
@@ -130,7 +142,8 @@ Over time, you may recognize that some of the rules you defined previously do no
     ```
 
   The numbers at the beginning of each row are the number of the rule in UFW.
+
 2. To delete a rule, find its number and type:
     ```code
-    sudo ufw delete NUMBER
+    sudo ufw delete <RULE_NUMBER>
     ```