docs: describe monorepo packages

Author: CharGrnmn

README.md

@@ -8,6 +8,11 @@
 
 This repository also contains the `@razroo/parallel-mcp` TypeScript npm workspace under [`packages/parallel-mcp`](./packages/parallel-mcp/).
 
+## Packages
+
+- [`state-trace`](./) — Python graph-native working memory for coding agents; published on PyPI as `state-trace`.
+- [`@razroo/parallel-mcp`](./packages/parallel-mcp) — TypeScript durable orchestration core for parallel MCP workloads; published on npm.
+
 What it is optimized for:
 
 - artifact-first retrieval for coding agents