udpate docs link

Author: gdw2

README.md

@@ -48,7 +48,7 @@ network data from multiple machines for central logging and analysis.
 
 ![PacketStreamer QuickStart](docs/docs/packetstreamer/img/packetstreamer.svg)
 
-For full instructions, refer to the [PacketStreamer Documentation](https://docs.deepfence.io/packetstreamer/).
+For full instructions, refer to the [PacketStreamer Documentation](https://docs.deepfence.io/docs/packetstreamer/).
 
 You will need to install the golang toolchain and `libpcap-dev` before building PacketStreamer.