Add README

README.md

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+# bliss-js
+This repo provides Node.js bindings for [Bliss](https://github.com/Polochon-street/bliss-rs).
+
+## Installation
+A package with prebuilt binaries for Linux (x86_64 and ARM64) is provided in the Gitea registry: [@bliss-rs/bliss-rs](https://gitea.antonlyap.pp.ua/antonlyap/-/packages/npm/@bliss-rs%2Fbliss-rs).
+
+```shell
+npm i @bliss-rs/bliss-rs --registry=https://gitea.antonlyap.pp.ua/api/packages/antonlyap/npm/
+```
+
+(the registry will be saved to your `package-lock.json` automatically)
+
+## Usage
+```ts
+import { analyze, analyzeSync } from '@bliss-rs/bliss-rs';
+
+await analyze("/path/to/track.mp3") // → { version: number; analysis: Float32Array }
+```