minimum required Terraform version bumped to 0.13.0, context.tf updated, readme updated (#24)

Author: maximmi

README.md

@@ -72,6 +72,25 @@ We literally have [*hundreds of terraform modules*][terraform_modules] that are
 
 
 
+## Security & Compliance [<img src="https://cloudposse.com/wp-content/uploads/2020/11/bridgecrew.svg" width="250" align="right" />](https://bridgecrew.io/)
+
+Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.
+
+| Benchmark | Description |
+|--------|---------------|
+| [![Infrastructure Security](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/general)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=INFRASTRUCTURE+SECURITY) | Infrastructure Security Compliance |
+| [![CIS KUBERNETES](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/cis_kubernetes)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=CIS+KUBERNETES+V1.5) | Center for Internet Security, KUBERNETES Compliance |
+| [![CIS AWS](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/cis_aws)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=CIS+AWS+V1.2) | Center for Internet Security, AWS Compliance |
+| [![CIS AZURE](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/cis_azure)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=CIS+AZURE+V1.1) | Center for Internet Security, AZURE Compliance |
+| [![PCI-DSS](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/pci)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=PCI-DSS+V3.2) | Payment Card Industry Data Security Standards Compliance |
+| [![NIST-800-53](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/nist)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=NIST-800-53) | National Institute of Standards and Technology Compliance |
+| [![ISO27001](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/iso)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=ISO27001) | Information Security Management System, ISO/IEC 27001 Compliance |
+| [![SOC2](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/soc2)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=SOC2)| Service Organization Control 2 Compliance |
+| [![CIS GCP](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/cis_gcp)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=CIS+GCP+V1.1) | Center for Internet Security, GCP Compliance |
+| [![HIPAA](https://www.bridgecrew.cloud/badges/github/cloudposse/terraform-aws-ec2-instance-group/hipaa)](https://www.bridgecrew.cloud/link/badge?vcs=github&fullRepo=cloudposse%2Fterraform-aws-ec2-instance-group&benchmark=HIPAA) | Health Insurance Portability and Accountability Compliance |
+
+
+
 ## Usage