docs(fls): update

Author: SamyOubouaziz

pages/file-storage/how-to/attach-file-system.mdx

@@ -27,12 +27,14 @@ import Requirements from '@macros/iam/requirements.mdx'
 
 2. Click the name of the file system you want to attach. The **Overview** page displays.
 
-3. Click **Attach Instance(s) to file system**. A pop-up displays.
+3. Open the **Attached Instance(s)**. A list of currently attached Instances displays.
 
-4. Select one Instance or more from the list, then click **Attach Instances to file system** to confirm.
+4. Click **Attach an Instance**. A pop-up displays.
+
+5. Select one Instance or more from the drop-down list, then click **Attach** to confirm.
 
     <Message type="note">a
     File systems can only be attached to Instances within the same [region](/file-storage/concepts/#region).
     </Message>
 
-Your file system is now attached to the selected Instance(s) and can now be [mounted](#how-to-mount-a-file-system-on-a-scaleway-instance)
+Your file system is now attached to the selected Instance(s) and can now be [mounted](/file-storage/how-to/mount-file-system/) to a Scaleway Instance.