Exclude useless files from the package

Author: bokub

package.json

@@ -1,7 +1,7 @@
 {
   "name": "gradient-string",
   "description": "Beautiful gradients in terminal stdout",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "author": "Boris K",
   "bugs": "https://github.com/bokub/gradient-string/issues",
   "dependencies": {
@@ -15,6 +15,9 @@
   "engines": {
     "node": ">=4"
   },
+  "files": [
+    "index.js"
+  ],
   "homepage": "https://github.com/bokub/gradient-string",
   "keywords": [
     "cli",
@@ -38,8 +41,8 @@
   "main": "index.js",
   "repository": "bokub/gradient-string",
   "scripts": {
-    "test": "xo && ava",
+    "built-in": "node examples/built-in.js",
     "demo": "node examples/demo.js",
-    "built-in": "node examples/built-in.js"
+    "test": "xo && ava"
   }
 }