title: Example of adding secondary CIDR block for a subnet in Cloudformation Template
body: <p>I'm trying to create a new public/private subnet pair in my VPC stack using Cloudformation but I don't have any IP space left, so I want to add a Secondary CIDR block to my VPC and create the new subnet from that secondary block. Are there any YAML code examples of a template that does so? I can't find one anywhere, and I'm having trouble figuring out what to add where.</p>