amazon web services - How to specify needed VPC and subnet into AWS CloudFormation template

I am new with Amazon services and particularly in CloudFormation.

So I have begun to read from "Getting Started with CloudFormation" from Amazon site http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/GettingStarted.html and now I am trying to launch example CloudFormation template https://s3.amazonaws.com/cloudformation-templates-us-east-1/WordPress_Single_Instance_With_RDS.template as wiki introduction described.

But before I has removed default VPC and added new one (10.0.0.0/16) and created new Subnet in it - 10.0.0.0/24. According to AWS docs I cant set my own VPC as default and now CloudFormation template, which described above, cant be launched and I see such error:

According to AWS page https://aws.amazon.com/premiumsupport/knowledge-center/cloudformation-cloudformer-default-vpc/ I can fix this issue with describing my new VPC, but I dont know why to do this correct.

Maybe you can help me?