Merge pull request #269822 from cherylmc/fix-strongSwan

add library

Author: v-dirichards

includes/vpn-gateway-strongswan-install-include.md

@@ -1,35 +1,38 @@
 ---
- title: include file
  author: cherylmc
  ms.service: vpn-gateway
  ms.topic: include
- ms.date: 05/17/2022
+ ms.date: 03/21/2024
  ms.author: cherylmc
 ---
 
-The following configuration was used for the steps below:
+The following configuration was used when specifying commands:
 
 * Computer: Ubuntu Server 18.04
 * Dependencies: strongSwan
 
 Use the following commands to install the required strongSwan configuration:
 
-```
+```CLI
 sudo apt-get update
 ```
 
-```
+```CLI
 sudo apt-get upgrade
 ```
 
-```
+```CLI
 sudo apt install strongswan
 ```
 
-```
+```CLI
 sudo apt install strongswan-pki
 ```
 
-```
+```CLI
 sudo apt install libstrongswan-extra-plugins
 ```
+
+```CLI
+sudo apt install libtss2-tcti-tabrmd0
+```