Refactor docs

Author: wooorm

readme.md

@@ -38,7 +38,7 @@ But this helps when integrating with the rest of unified and unist.
 ## 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 unist-util-find-all-before
@@ -90,7 +90,7 @@ Yields:
 
 ## API
 
-This package exports the identifier [`findAllBefore`][api-findallbefore].
+This package exports the identifier [`findAllBefore`][api-find-all-before].
 There is no default export.
 
 ### `findAllBefore(parent, child|index[, test])`
@@ -120,10 +120,13 @@ It exports no additional types (types for the test are in `unist-util-is`).
 
 ## 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,
+`unist-util-find-all-before@^4`, compatible with Node.js 12.
 
 ## Related
 
@@ -178,9 +181,9 @@ abide by its terms.
 
 [downloads]: https://www.npmjs.com/package/unist-util-find-all-before
 
-[size-badge]: https://img.shields.io/bundlephobia/minzip/unist-util-find-all-before.svg
+[size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=unist-util-find-all-before
 
-[size]: https://bundlephobia.com/result?p=unist-util-find-all-before
+[size]: https://bundlejs.com/?q=unist-util-find-all-before
 
 [sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
 
@@ -218,4 +221,4 @@ abide by its terms.
 
 [test]: https://github.com/syntax-tree/unist-util-is#test
 
-[api-findallbefore]: #findallbeforeparent-childindex-test
+[api-find-all-before]: #findallbeforeparent-childindex-test