dpdk - updated README.md for multiport read

README.md

@@ -160,6 +160,10 @@ Here are the examples of various plugins usage:
 # Example for the queue of 3 DPDK input plugins (q=3):
 `./ipfixprobe -i "dpdk;p=0;q=3;e=-c 0x1 -a  <[domain:]bus:devid.func>" -i dpdk -i dpdk -p http "-p" bstats -p tls -o "ipfix;h=127.0.0.1"`
 
+# Same example for the multiport read from ports 0 and 1, note comma separated ports:
+`./ipfixprobe -i "dpdk;p=0,1;q=3;e=-c 0x1 -a  <[domain:]bus:devid.func>" -i dpdk -i dpdk -p http "-p" bstats -p tls -o "ipfix;h=127.0.0.1"`
+
+
 # Read packets using DPDK input interface as secondary process with shared memory (DPDK rings) - in this case, 4 DPDK rings are used
 `./ipfixprobe -i 'dpdk-ring;r=rx_ipfixprobe_0;e= --proc-type=secondary' -i 'dpdk-ring;r=rx_ipfixprobe_1' -i 'dpdk-ring;r=rx_ipfixprobe_2' -i 'dpdk-ring;r=rx_ipfixprobe_3' -o 'text'`
 ```