Add netstat resource (#2451)

Adding additional YouTube resource for netstat command,

content/roadmaps/102-devops/content/102-managing-servers/101-live-in-terminal/114-netstat.md

@@ -6,3 +6,5 @@ Netstat is a command line utility to display all the network connections on a sy
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.tutorialspoint.com/unix_commands/netstat.htm'>netstat command in Linux with Examples</BadgeLink>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='http://www.c-jump.com/CIS24/Slides/Networking/html_utils/netstat.html'>Netstat Tutorial</BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=bxFwpm4IobU'>Netstat Commands - Network Administration Tutorial</BadgeLink>
+<BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=zGNcvBaN5wE'>Linux Command Line Tutorial For Beginners - netstat command</BadgeLink>
+