feat: created README

Author: Hi-Fi

README.md

@@ -1 +1,29 @@
-# replace this
+# Biome component for Projen NodeJS projects
+
+- [Biome](https://biomejs.dev/) 
+- [Projen](https://projen.io)
+
+## Example usage
+
+- in Projen configuration file (usually `.projenrc.ts` or `.projenrc.js`) import `Biome` component and create new instance of it:
+
+```ts
+import { cdk } from 'projen'
+import { Biome } from "projen-biome";
+
+const project = new cdk.JsiiProject({
+    defaultReleaseBranch: "main",
+    devDeps: ["projen-biome"],
+    eslint: false,
+    prettier: false,
+    name: "biome-example",
+    projenrcTs: true,
+});
+
+new Biome(project);
+
+project.synth();
+```
+
+- Run only linting with `npm run biome`
+- Run full testing (including tests and linting/formatting) with `npm run test`