Remove em dashes from the remaining English content

content/en/2.general/1.networking/1.nat.md

@@ -53,7 +53,7 @@ __Warning:__ If you have multiple services to expose like `subdomain1.mydomain.c
 
 Every time a device connects to your local network, your router assigns it an IP address using DHCP rules.  
 This IP is randomly selected from a predefined pool.  
-At every device reboot, the IP may change — which is problematic if you're forwarding ports, as the target IP may no longer be valid.  
+At every device reboot, the IP may change, which is problematic if you're forwarding ports, as the target IP may no longer be valid.  
 
 To avoid this, use your router's DHCP server to assign a static IP address.