More explicit instructions

01-cluster-bootstrap/README.md

@@ -1,9 +1,10 @@
 # 01 | Cluster Bootstrap
 
-Assumption is that an external load balancer is already configured for the cluster control plane IP address.  Initialize the cluster, but do not join any other nodes to it yet.  
+Assumption is that an external load balancer is already configured for the cluster control plane IP address.  Initialize the cluster on one control node, but do not join any other nodes to it yet.  
 
 ```bash
 
+# Only run on one control plane node - do not join other nodes until after CNI is configured
 sudo kubeadm init --config cluster-config.yaml --upload-certs
 
 ```

02-cni-cilium/README.md

@@ -1,6 +1,6 @@
 # 02 | CNI Cilium
 
-Only install one CNI.  Cilium brings network policy capabilities and uses eBPF technology to provide increased performance.
+Only install one CNI, do not install Flannel if using Cilium.  Cilium brings network policy capabilities and uses eBPF technology to provide increased performance.
 
 Reference: https://docs.cilium.io/en/stable/gettingstarted/k8s-install-default/
 

02-cni-flannel/README.md

@@ -1,5 +1,7 @@
 # 02 | CNI = Flannel
 
+### It is not recommended to use flannel, and instead should use 02-cni-cilium.   Do not install both flannel and cilium.
+
 [https://github.com/flannel-io/flannel](https://github.com/flannel-io/flannel)
 
 Flannel provides the pod to pod networking, using [VXLAN](https://en.wikipedia.org/wiki/Virtual_Extensible_LAN).