Update docs

readme.md

@@ -5,19 +5,56 @@
 [![Downloads][downloads-badge]][downloads]
 [![Size][size-badge]][size]
 
-:warning: Throw a given error.
+Throw if given an error.
 
-## Install
+## Contents
+
+*   [What is this?](#what-is-this)
+*   [When should I use this?](#when-should-i-use-this)
+*   [Install](#install)
+*   [Use](#use)
+*   [API](#api)
+    *   [`bail(err?)`](#bailerr)
+*   [Types](#types)
+*   [Compatibility](#compatibility)
+*   [Security](#security)
+*   [Related](#related)
+*   [Contribute](#contribute)
+*   [License](#license)
+
+## What is this?
 
-This package is ESM only: Node 12+ is needed to use it and it must be `import`ed
-instead of `require`d.
+This package throws a given error.
 
-[npm][]:
+## When should I use this?
+
+Use this package if you’re building some scripts that might theoretically get
+errors but frequently don’t and you keep writing `if (error) throw error` over
+and over again and you’re just really done with that.
+
+## Install
+
+This package is [ESM only][esm].
+In Node.js (version 12.20+, 14.14+, or 16.0+), install with [npm][]:
 
 ```sh
 npm install bail
 ```
 
+In Deno with [Skypack][]:
+
+```js
+import {bail} from 'https://cdn.skypack.dev/bail@2?dts'
+```
+
+In browsers with [Skypack][]:
+
+```html
+<script type="module">
+  import {bail} from 'https://cdn.skypack.dev/bail@2?min'
+</script>
+```
+
 ## Use
 
 ```js
@@ -34,27 +71,39 @@ bail(new Error('failure'))
 
 ## API
 
-This package exports the following identifiers: `bail`.
+This package exports the following identifier: `bail`.
 There is no default export.
 
-### `bail([err])`
+### `bail(err?)`
 
-Throw a given error.
+Throw a given error (`Error?`).
 
-###### Parameters
+## Types
 
-*   `err` (`Error?`) — Optional error.
+This package is fully typed with [TypeScript][].
+There are no extra exported types.
 
-###### Throws
+## Compatibility
 
-*   `Error` — Given error, if any.
+This package is at least compatible with all maintained versions of Node.js.
+As of now, that is Node.js 12.20+, 14.14+, and 16.0+.
+It also works in Deno and modern browsers.
+
+## Security
+
+This package is safe.
 
 ## Related
 
 *   [`noop`][noop]
 *   [`noop2`][noop2]
 *   [`noop3`][noop3]
 
+## Contribute
+
+Yes please!
+See [How to Contribute to Open Source][contribute].
+
 ## License
 
 [MIT][license] © [Titus Wormer][author]
@@ -79,10 +128,18 @@ Throw a given error.
 
 [npm]: https://docs.npmjs.com/cli/install
 
+[skypack]: https://www.skypack.dev
+
 [license]: license
 
 [author]: https://wooorm.com
 
+[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
+
+[typescript]: https://www.typescriptlang.org
+
+[contribute]: https://opensource.guide/how-to-contribute/
+
 [noop]: https://www.npmjs.com/package/noop
 
 [noop2]: https://www.npmjs.com/package/noop2