replace key with emergency kit to reflect current SW

source/more-info/backup-emergency-kit.markdown

@@ -3,14 +3,14 @@ title: "Backup emergency kit"
 description: "Information about backup emergency kit"
 ---
 
-The backup emergency kit contains the encryption key needed to recover your backup.
-Backups are encrypted (AES-128) and you need this information to decrypt the backup when you want to restore your system from that backup.
+The backup emergency kit contains information needed to recover your backup, such as the encryption key and metadata about the backup.
+Backups are encrypted (using [AES-128](https://en.wikipedia.org/wiki/Advanced_Encryption_Standard)) and you need this information to decrypt the backup when you want to restore your system from that backup.
 
 ## Storing the backup emergency kit somewhere safe
 
 1. To download the emergency kit, go to {% my backup title="**Settings** > **System** > **Backups**" %}
-2. If it is your first time defining backup settings, select **Setup automatic backup** and download the encryption key.
-   - You can also download the key again later under configuration.
+2. If it is your first time defining backup settings, select **Setup automatic backup** and download the backup emergency kit.
+   - You can also download the encryption key again later from the configuration page.
 
     ![Screenshot showing the encryption key in the download dialog for the backup emergency kit](/images/more-info/backup_emergency_kit_01.png)
 
@@ -23,7 +23,7 @@ When you set up your backups, an encryption key is generated automatically. This
 
 1. To generate a new encryption key, go to {% my backup title="**Settings** > **System** > **Backups**" %}.
 2. Select **Configure automatic backups** and under **Encryption key**, select **Change**.
-3. If you haven't downloaded the old encryption key yet, do it now.
+3. If you haven't downloaded the old emergency kit yet, do it now.
 4. Select **Change encryption key**.
 5. Download the new encryption key and store it in a safe place.