Change to require Node.js 16

Author: wooorm

readme.md

@@ -32,7 +32,7 @@ looking for!
 ## 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-heading
@@ -107,8 +107,8 @@ versions of Node.js.
 
 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-heading@^2`,
-compatible with Node.js 12.
+This means we try to keep the current release line, `hast-util-heading@^3`,
+compatible with Node.js 16.
 
 ## Security
 

tsconfig.json

@@ -5,10 +5,10 @@
     "declaration": true,
     "emitDeclarationOnly": true,
     "exactOptionalPropertyTypes": true,
-    "lib": ["es2020"],
+    "lib": ["es2022"],
     "module": "node16",
     "strict": true,
-    "target": "es2020"
+    "target": "es2022"
   },
   "exclude": ["coverage/", "node_modules/"],
   "include": ["**/*.js"]