Help regarding VPC and other external resource

Looks like that link is broken! I think this is the equivalent new content: https://github.com/serverless/serverless/blob/master/docs/02-providers/aws/02-iam.md

Here’s the example from that link:

# serverless.yml

service: new-service
provider:
  name: aws
  iamRoleStatements:
      -  Effect: "Allow"
         Action:
           - "s3:ListBucket"
         Resource: { "Fn::Join" : ["", ["arn:aws:s3:::", { "Ref" : "ServerlessDeploymentBucket"} ] ] }
      -  Effect: "Allow"
         Action:
           - "s3:PutObject"
         Resource:
           Fn::Join:
             - ""
             - - "arn:aws:s3:::"
               - "Ref" : "ServerlessDeploymentBucket"