Minor update to flags for new slicer release

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

cluster-autoscaler/cloudprovider/slicer/README.md

@@ -9,6 +9,10 @@ The autoscaler is run out of cluster for now, on your local machine.
 
 K3sup Pro makes scaffolding the cluster, and fetching the various secrets much easier and is included with the Slicer bundle.
 
+On your local machine, you'll have to run the route commands so that your local machine can reach the Slicer API and the K3s nodes.
+
+If your control plane and agents are on different machines (recommended), then you'll need to run the routes in on the respective hosts, so the control plane can reach the agents, and the agents the control plane. However if these are on the same virtualisation server, *do not run the routes there*.
+
 ### Pre-setup
 
 Create an initial K3s cluster with 3x nodes using the following command on the virtualization server:
@@ -20,6 +24,7 @@ slicer new k3s-cp \
  --count=3 \
  --cidr 192.168.137.0/24 \
  --api-port=8080 \
+ --api-bind="0.0.0.0" \
  --ssh-key
  > k3s-cp.yaml