Add improved docs

Author: wooorm

package.json

@@ -44,15 +44,15 @@
     "@types/tape": "^4.0.0",
     "c8": "^7.0.0",
     "prettier": "^2.0.0",
-    "remark": "^13.0.0",
-    "remark-cli": "^9.0.0",
-    "remark-preset-wooorm": "^8.0.0",
+    "remark": "^14.0.0",
+    "remark-cli": "^10.0.0",
+    "remark-preset-wooorm": "^9.0.0",
     "rimraf": "^3.0.0",
     "tape": "^5.0.0",
     "type-coverage": "^2.0.0",
     "typescript": "^4.0.0",
     "unist-util-remove-position": "^4.0.0",
-    "xo": "^0.42.0"
+    "xo": "^0.49.0"
   },
   "scripts": {
     "prepack": "npm run build && npm run format",

test/index.js

@@ -5,7 +5,7 @@
 import fs from 'node:fs'
 import path from 'node:path'
 import test from 'tape'
-import remark from 'remark'
+import {remark} from 'remark'
 import {removePosition} from 'unist-util-remove-position'
 import {normalizeHeadings} from '../index.js'