Added 'jq' to prerequisite and readme for k8s test network (#582)

Signed-off-by: Vinay <vinayaggarwal@softwaysolutions.com>

Co-authored-by: Vinay <vinayaggarwal@softwaysolutions.com>

test-network-k8s/README.md

@@ -20,7 +20,7 @@ _Fabric, Ahoy!_
 - [Docker](https://www.docker.com)
 - [kubectl](https://kubernetes.io/docs/tasks/tools/)
 - [kind](https://kind.sigs.k8s.io/docs/user/quick-start/#installation)
-
+- [jq](https://stedolan.github.io/jq/)
 
 ## Quickstart
 

test-network-k8s/scripts/prereqs.sh

@@ -25,4 +25,10 @@ function check_prereqs() {
     echo "No 'kubectl' binary available? (https://kubernetes.io/docs/tasks/tools/)"
     exit 1
   fi
+
+  jq --version > /dev/null
+  if [[ $? -ne 0 ]]; then
+    echo "No 'jq' binary available? (https://stedolan.github.io/jq/)"
+    exit 1
+  fi
 }