Update README.md

Added Checkov as a security tool

Signed-off-by: James Brotsos <j.brotsos@gmail.com>

README.md

@@ -66,6 +66,7 @@ To only run specific analyzers, use the `tools` command. This command is a comma
 | [AntiMalware](https://www.microsoft.com/en-us/windows/comprehensive-security) | code, artifacts | - |
 | [Bandit](https://github.com/PyCQA/bandit) | python | [Apache License 2.0](https://github.com/PyCQA/bandit/blob/master/LICENSE) |
 | [BinSkim](https://github.com/Microsoft/binskim) | binary - Windows, ELF | [MIT License](https://github.com/microsoft/binskim/blob/main/LICENSE) |
+| [Checkov](https://github.com/bridgecrewio/checkov) | Terraform, Terraform plan, Cloudformation, AWS SAM, Kubernetes, Helm charts, Kustomize, Dockerfile, Serverless, Bicep, OpenAPI, ARM Templates, or OpenTofu  | [Apache License 2.0](https://github.com/bridgecrewio/checkov/blob/main/LICENSE) |
 | [ESlint](https://github.com/eslint/eslint) | JavaScript | [MIT License](https://github.com/eslint/eslint/blob/main/LICENSE) |
 | [Template Analyzer](https://github.com/Azure/template-analyzer) | Infrastructure-as-code (IaC), ARM templates, Bicep files | [MIT License](https://github.com/Azure/template-analyzer/blob/main/LICENSE.txt) |
 | [Terrascan](https://github.com/accurics/terrascan) | Infrastructure-as-code (IaC), Terraform (HCL2), Kubernetes (JSON/YAML), Helm v3, Kustomize, Dockerfiles, Cloudformation | [Apache License 2.0](https://github.com/accurics/terrascan/blob/master/LICENSE) |