💥 add exports field to package.json

and tweak supported node versions.

Author: mysticatea

package.json

@@ -3,14 +3,21 @@
   "version": "2.1.0",
   "description": "Utilities for ESLint plugins.",
   "engines": {
-    "node": ">=10"
+    "node": "^10.0.0 || ^12.0.0 || >= 14.0.0"
   },
   "sideEffects": false,
   "main": "index",
   "module": "index.mjs",
   "files": [
     "index.*"
   ],
+  "exports": {
+    ".": {
+      "import": "./index.mjs",
+      "require": "./index.js"
+    },
+    "./package.json": "./package.json"
+  },
   "dependencies": {
     "eslint-visitor-keys": "^2.0.0"
   },