fix package.json

Author: WisdomQuest

package.json

@@ -2,7 +2,7 @@
   "name": "@hexlet/code",
   "version": "1.0.0",
   "description": "[![Actions Status](https://github.com/WisdomQuest/frontend-project-46/actions/workflows/hexlet-check.yml/badge.svg)](https://github.com/WisdomQuest/frontend-project-46/actions)",
-  "main": "bin/gendiff.js",
+  "main": "./src/formatters/index.js",
   "scripts": {
     "test": "jest"
   },