Switch editing instructions from vim to nano and use kbd for keys

content/en/3.serveex/8.development/3.it-tools.md

@@ -102,10 +102,10 @@ Inside the Swag folders, create the file `tools.subdomain.conf`.
 ::
 
 ```sh
-sudo vi /docker/swag/config/nginx/proxy-confs/tools.subdomain.conf
+sudo nano /docker/swag/config/nginx/proxy-confs/tools.subdomain.conf
 ```
 
-Enter edit mode by pressing `i` and paste the configuration below:
+Paste the configuration below:
 
 ```nginx
 ## Version 2023/12/19
@@ -158,7 +158,7 @@ server {
 }
 ```
 
-Press `Esc`, then save and exit by typing `:x` and pressing `Enter`.
+Press :kbd{value="Ctrl+O"}, then :kbd{value="Enter"} to save, and :kbd{value="Ctrl+X"} to exit.
 
 And that’s it — IT Tools is now exposed!