Update README.md

README.md

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-# bifrost-registry
+# Bifrost Registry
 
+**Bifrost Registry** is a manifest repository for applications managed by the [Bifrost](https://git.nextzenos.com/NextZen/Bifrost) platform. It serves as a centralized, version-controlled index of all apps Bifrost can detect, install, manage, and interact with.
+
+## 📦 What Is This?
+
+`bifrost-registry` contains declarative manifest files (YAML format) that describe:
+
+- Application metadata (name, version, description)
+- Repository URLs (source code, containers, etc.)
+- Deployment type (e.g., Docker Compose, K8s Helm, native binary)
+- Health checks, UI entrypoints, and management APIs
+- Optional custom behaviors Bifrost can invoke (e.g., backup, restore)