Refactor docs

Author: wooorm

readme.md

@@ -49,7 +49,7 @@ a document, for use with [`rehype-meta`][rehype-meta].
 ## Install
 
 This package is [ESM only][esm].
-In Node.js (version 14.14+ and 16.0+), install with [npm][]:
+In Node.js (version 16+), install with [npm][]:
 
 ```sh
 npm install hast-util-excerpt
@@ -115,7 +115,7 @@ console.log(excerpt(tree));
 
 ## API
 
-This package exports the identifier [`excerpt`][excerpt].
+This package exports the identifier [`excerpt`][api-excerpt].
 There is no default export.
 
 ### `excerpt(tree[, options])`
@@ -126,12 +126,12 @@ Truncate `tree` to a certain comment.
 
 *   `tree` ([`Node`][node])
     — tree to truncate
-*   `options` ([`Options`][options])
+*   `options` ([`Options`][api-options])
     — configuration (optional)
 
 ###### Returns
 
-Truncated copy of `tree` ([`Node`][node]) when a comment is found, `undefined`
+Truncated clone of `tree` ([`Node`][node]) when a comment is found, `undefined`
 otherwise.
 
 ### `Options`
@@ -164,14 +164,17 @@ The syntax tree is [hast][].
 ## Types
 
 This package is fully typed with [TypeScript][].
-It exports the additional type [`Options`][options].
+It exports the additional type [`Options`][api-options].
 
 ## Compatibility
 
-Projects maintained by the unified collective are compatible with all maintained
+Projects maintained by the unified collective are compatible with maintained
 versions of Node.js.
-As of now, that is Node.js 14.14+ and 16.0+.
-Our projects sometimes work with older versions, but this is not guaranteed.
+
+When we cut a new major release, we drop support for unmaintained versions of
+Node.
+This means we try to keep the current release line, `hast-util-excerpt@^1`,
+compatible with Node.js 12.
 
 ## Security
 
@@ -216,9 +219,9 @@ abide by its terms.
 
 [downloads]: https://www.npmjs.com/package/hast-util-excerpt
 
-[size-badge]: https://img.shields.io/bundlephobia/minzip/hast-util-excerpt.svg
+[size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=hast-util-excerpt
 
-[size]: https://bundlephobia.com/result?p=hast-util-excerpt
+[size]: https://bundlejs.com/?q=hast-util-excerpt
 
 [sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
 
@@ -260,8 +263,8 @@ abide by its terms.
 
 [rehype-meta]: https://github.com/rehypejs/rehype-meta
 
-[excerpt]: #excerpttree-options
+[node]: https://github.com/syntax-tree/hast#nodes
 
-[options]: #options
+[api-excerpt]: #excerpttree-options
 
-[node]: https://github.com/syntax-tree/hast#nodes
+[api-options]: #options