docs: highlight v0.3.0 release in README

Author: stacknil

README.md

@@ -1,8 +1,10 @@
-# telemetry-lab
-
-[![CI](https://github.com/stacknil/telemetry-lab/actions/workflows/ci.yml/badge.svg)](https://github.com/stacknil/telemetry-lab/actions/workflows/ci.yml)
-
-Small prototypes for telemetry analytics, monitoring, and detection-oriented signal processing.
+# telemetry-lab
+
+[![CI](https://github.com/stacknil/telemetry-lab/actions/workflows/ci.yml/badge.svg)](https://github.com/stacknil/telemetry-lab/actions/workflows/ci.yml)
+
+Latest release: [v0.3.0](https://github.com/stacknil/telemetry-lab/releases/tag/v0.3.0) adds more precise cooldown scoping, a richer bundled scenario pack, and machine-readable run summaries for reusable local demos.
+
+Small prototypes for telemetry analytics, monitoring, and detection-oriented signal processing.
 
 ## Current demo