fix: lint package.json, added files array

package.json

@@ -1,36 +1,9 @@
 {
   "name": "supertest",
-  "version": "6.2.4",
   "description": "SuperAgent driven library for testing HTTP servers",
-  "main": "index.js",
+  "version": "6.2.4",
   "author": "TJ Holowaychuk",
-  "contributors": [
-    "Dimitri DO BAIRRO <dimitri.dobairro@dimsolution.com>"
-  ],
-  "license": "MIT",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/visionmedia/supertest.git"
-  },
-  "engines": {
-    "node": ">=6.4.0"
-  },
-  "keywords": [
-    "superagent",
-    "request",
-    "tdd",
-    "bdd",
-    "http",
-    "test",
-    "testing"
-  ],
-  "scripts": {
-    "lint": "eslint lib/**/*.js test/**/*.js index.js",
-    "lint:fix": "eslint --fix lib/**/*.js test/**/*.js index.js",
-    "pretest": "npm run lint --if-present",
-    "test": "nyc --reporter=html --reporter=text mocha --exit --require should --reporter spec --check-leaks",
-    "coverage": "nyc report --reporter=text-lcov > coverage.lcov"
-  },
+  "contributors": [],
   "dependencies": {
     "methods": "^1.1.2",
     "superagent": "^8.0.0"
@@ -47,5 +20,34 @@
     "nyc": "^15.1.0",
     "proxyquire": "^2.1.3",
     "should": "^13.2.3"
+  },
+  "engines": {
+    "node": ">=6.4.0"
+  },
+  "files": [
+    "index.js",
+    "lib"
+  ],
+  "keywords": [
+    "bdd",
+    "http",
+    "request",
+    "superagent",
+    "tdd",
+    "test",
+    "testing"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/visionmedia/supertest.git"
+  },
+  "scripts": {
+    "coverage": "nyc report --reporter=text-lcov > coverage.lcov",
+    "lint": "eslint lib/**/*.js test/**/*.js index.js",
+    "lint:fix": "eslint --fix lib/**/*.js test/**/*.js index.js",
+    "pretest": "npm run lint --if-present",
+    "test": "nyc --reporter=html --reporter=text mocha --exit --require should --reporter spec --check-leaks"
   }
 }