Add improved docs

Author: wooorm

readme.md

@@ -8,19 +8,61 @@
 [![Backers][backers-badge]][collective]
 [![Chat][chat-badge]][chat]
 
-[**unist**][unist] utility to check if a [node][] is [*generated*][generated].
+[unist][] utility to check if a node is generated.
 
-## Install
+## Contents
+
+*   [What is this?](#what-is-this)
+*   [When should I use this?](#when-should-i-use-this)
+*   [Install](#install)
+*   [Use](#use)
+*   [API](#api)
+    *   [`generated(node)`](#generatednode)
+*   [Types](#types)
+*   [Compatibility](#compatibility)
+*   [Related](#related)
+*   [Contribute](#contribute)
+*   [License](#license)
+
+## What is this?
+
+This utility can be used to check if a node is said to be [generated][].
 
-This package is [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c):
-Node 12+ is needed to use it and it must be `import`ed instead of `require`d.
+## When should I use this?
 
-[npm][]:
+You can use this utility to check is generated.
+Generated nodes were not in the source of the original file, and thus not
+authored by a human.
+This info can then be used to not emit lint messages for generated content.
+
+You might also find the utility [`unist-util-position`][unist-util-position]
+useful to get clean positional info.
+To display positional info to users, use
+[`unist-util-stringify-position`][unist-util-stringify-position].
+
+## Install
+
+This package is [ESM only][esm].
+In Node.js (version 12.20+, 14.14+, 16.0+, 18.0+), install with [npm][]:
 
 ```sh
 npm install unist-util-generated
 ```
 
+In Deno with [`esm.sh`][esmsh]:
+
+```js
+import {generated} from "https://esm.sh/unist-util-generated@2"
+```
+
+In browsers with [`esm.sh`][esmsh]:
+
+```html
+<script type="module">
+  import {generated} from "https://esm.sh/unist-util-generated@2?bundle"
+</script>
+```
+
 ## Use
 
 ```js
@@ -37,36 +79,44 @@ generated({
 
 ## API
 
-This package exports the following identifiers: `generated`.
+This package exports the identifier `generated`.
 There is no default export.
 
 ### `generated(node)`
 
-Check if [`node`][node] is [*generated*][generated].
+Check if `node` ([`Node`][node]) is *[generated][]*.
+
+###### Returns
 
-###### Parameters
+Whether `node` is generated (`boolean`).
 
-*   `node` ([`Node`][node]) — Node to check.
+## Types
 
-###### Returns
+This package is fully typed with [TypeScript][].
+It exports no additional types.
+
+## Compatibility
 
-`boolean` — Whether `node` is generated.
+Projects maintained by the unified collective are compatible with all maintained
+versions of Node.js.
+As of now, that is Node.js 12.20+, 14.14+, 16.0+, and 18.0+.
+Our projects sometimes work with older versions, but this is not guaranteed.
 
 ## Related
 
 *   [`unist-util-position`](https://github.com/syntax-tree/unist-util-position)
-    — Get the position of nodes
+    — get the position of nodes
 *   [`unist-util-source`](https://github.com/syntax-tree/unist-util-source)
-    — Get the source of a node or position
+    — get the source of a node or position
 *   [`unist-util-remove-position`](https://github.com/syntax-tree/unist-util-remove-position)
-    — Remove `position`s from a tree
+    — remove `position`s
 *   [`unist-util-stringify-position`](https://github.com/syntax-tree/unist-util-stringify-position)
-    — Stringify a node, position, or point
+    — serialize positional info
 
 ## Contribute
 
-See [`contributing.md` in `syntax-tree/.github`][contributing] for ways to get
-started.
+See [`contributing.md`][contributing] in [`syntax-tree/.github`][health] for
+ways to get started.
 See [`support.md`][support] for ways to get help.
 
 This project has a [code of conduct][coc].
@@ -107,18 +157,30 @@ abide by its terms.
 
 [npm]: https://docs.npmjs.com/cli/install
 
+[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
+
+[esmsh]: https://esm.sh
+
+[typescript]: https://www.typescriptlang.org
+
 [license]: license
 
 [author]: https://wooorm.com
 
-[contributing]: https://github.com/syntax-tree/.github/blob/HEAD/contributing.md
+[health]: https://github.com/syntax-tree/.github
 
-[support]: https://github.com/syntax-tree/.github/blob/HEAD/support.md
+[contributing]: https://github.com/syntax-tree/.github/blob/main/contributing.md
 
-[coc]: https://github.com/syntax-tree/.github/blob/HEAD/code-of-conduct.md
+[support]: https://github.com/syntax-tree/.github/blob/main/support.md
+
+[coc]: https://github.com/syntax-tree/.github/blob/main/code-of-conduct.md
 
 [unist]: https://github.com/syntax-tree/unist
 
 [node]: https://github.com/syntax-tree/unist#node
 
 [generated]: https://github.com/syntax-tree/unist#generated
+
+[unist-util-position]: https://github.com/syntax-tree/unist-util-position
+
+[unist-util-stringify-position]: https://github.com/syntax-tree/unist-util-stringify-position