Add README

Signed-off-by: macdonst <[email protected]>

readme.md

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+![enhance-type](https://user-images.githubusercontent.com/76308/223593101-1f65f07f-49c4-4a13-9203-4ab4ff72f097.svg)
+
+## [`@enhance/enhance-starter-project`](https://www.npmjs.com/package/@enhance/plugin-typescript)
+
+> TypeScript support and workflow integration for Enhance
+
+[![GitHub CI status](https://github.com/enhance-dev/plugin-typescript/workflows/Node%20CI/badge.svg)](https://github.com/enhance-dev/plugin-typescript/actions?query=workflow%3A%22Node+CI%22)
+
+
+## Install
+
+Into your existing Enhance project:
+
+```sh
+npm i @enhance/plugin-typescript --save-dev
+```
+
+Add the following to your project manifest (usually `.arc`):
+
+```arc
+@plugins
+enhance/plugin-typescript
+```