Add a few NSE cross-references

scripts/broadcast-dhcp-discover.nse

@@ -23,6 +23,9 @@ The script needs to be run as a privileged user, typically root.
 ]]
 
 ---
+-- @see broadcast-dhcp6-discover.nse
+-- @see dhcp-discover.nse
+--
 -- @usage
 -- sudo nmap --script broadcast-dhcp-discover
 --

scripts/broadcast-dhcp6-discover.nse

@@ -14,6 +14,9 @@ to a privileged port (udp/546).
 ]]
 
 ---
+-- @see broadcast-dhcp-discover.nse
+-- @see dhcp-discover.nse
+--
 -- @usage
 -- nmap -6 --script broadcast-dhcp6-discover
 --

scripts/dhcp-discover.nse

@@ -30,6 +30,9 @@ Some of the more useful fields:
 ]]
 
 ---
+-- @see broadcast-dhcp6-discover.nse
+-- @see broadcast-dhcp-discover.nse
+--
 -- @args dhcptype The type of DHCP request to make. By default,  DHCPINFORM is sent, but this
 --                argument can change it to DHCPOFFER,  DHCPREQUEST, DHCPDECLINE, DHCPACK, DHCPNAK,
 --                DHCPRELEASE or DHCPINFORM. Not all types will evoke a response from all servers,