adding bold text

Author: jdv

crowdsec-docs/unversioned/bouncers/firewall.mdx

@@ -42,14 +42,14 @@ Supported firewalls:
 ## Installation
 
 Packages for crowdsec-firewall-bouncer [are available on our repositories](/docs/next/getting_started/install_crowdsec#install-our-repositories). You need to pick the package according to your firewall system :  
-(info) *To know if your system is using iptables or nftables, you can run the following command:*
+(info) *To know if your system is using **iptables** or **nftables**, you can run the following command:*
 
 ```bash
 iptables -V
 ```
 
-If you see the mention of 'nt_tables' in the output, you are using nftables.
-
+If you see the mention of 'nt_tables' in the output, you are using nftables.  
+---
 ### IPTables
 
 <Tabs