docs(readme): add mention to trivy

Author: JasonTheDeveloper

README.md

@@ -3,11 +3,13 @@
 This repository contains the following dev container features:
 
 - [sbom](./src/sbom/README.md): this installs Microsoft's [sbom-tool](https://github.com/microsoft/sbom-tool) used to aid in generating SPDX 2.2 SBOMs (Software Bill of Material)
+- [trivy](./src/trivy/README.md): this installs [Trivy](https://github.com/aquasecurity/trivy) to scan for vulnerabilities in container images, file systems, and Git repositories
 
 ## Example Usage
 
 ```json
 "features": {
-    "ghcr.io/JasonTheDeveloper/features/sbom:1": {}
+    "ghcr.io/JasonTheDeveloper/features/sbom:1": {},
+    "ghcr.io/JasonTheDeveloper/features/trivy:1": {}
 }
 ```