Added README for VSS apps.

Signed-off-by: Naresh Nayak <[email protected]>

examples/acf-vss/README.md

@@ -1,3 +1,27 @@
 # ACF-VSS
 
-A 1722 transport for VSS data.
+The two applications available in this folder are acf-vss-listener and acf-vss-talker. Together they can be used as sample applications for implementing the (de-)serialization of VSS on IEEE 1722 as described in [Protocol description](./examples/acf-vss/protocol_description/acf-vss.md).
+
+## ACF-VSS-Talker
+This application sends Vehicle.Speed as a float value.
+To run this application using UDP:
+```
+$ ./acf-vss-talker -u 10.0.0.2:17220
+```
+
+For using Ethernet layer as a transport:
+```
+$ ./acf-vss-talker eth0 <Destination MAC Address>
+```
+
+## ACF-VSS-Listener
+This application receives the VSS values sent by ACF-VSS-Talker application.
+To receive the VSS messages over IEEE 1722 using UDP.
+```
+$ ./acf-vss-listener -u -p 17220
+```
+
+For receiving VSS messages over Ethernet layer as a transport:
+```
+$ ./acf-vss-listener <interface_name> <Destination MAC Address>
+```