Add `make fix` to fix code syntax

package.json

@@ -13,6 +13,7 @@
     "clean": "rm -rf lib && rm -rf dist",
     "docs": "cd website && node build-documentation.js",
     "lint": "eslint src/**/*.js",
+    "fix": "eslint src/**/*.js --fix",
     "server": "browser-sync start --config .browsersync.js",
     "start": "npm run build && npm run web",
     "test:phantom": "zuul test/spec/upload.js --phantom",