Mention we want to lock down SSH by default
Also, add a link to marapongo/mu#33.
@@ -116,7 +116,7 @@ Each Cluster gets a Virtual Private Cloud (VPC) for network isolation. Along wi
sub-resources: a Subnet, Internet Gateway, and Route Table. By default, Ingress and Egress ports are left closed. As
Stacks are deployed, ports are managed automatically (although an administrator can lock them (TODO(joe): how)).
-TODO(joe): open SSH by default?
+TODO[marapongo/mu#33]: figure out what to do with SSH by default; most likely, we want to lock this down.
TODO(joe): joining existing VPCs.
