Add note on docs

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Author: alexellis

hack/install-edge.sh

@@ -110,7 +110,9 @@ echo "4. Then perform the final installation steps"
 echo ""
 echo "sudo -E sh -c \"cd ${tmpdir}/var/lib/faasd && faasd install\""
 echo ""
-echo "5. Refer to the complete handbook"
+echo "5. Refer to the complete handbook and supplementary documentation at:"
 echo ""
 echo "http://store.openfaas.com/l/serverless-for-everyone-else?layout=profile"
 echo ""
+echo "https://docs.openfaas.com/edge/overview"
+echo ""