Update npm scripts

package.json

@@ -14,13 +14,12 @@
     "bot"
   ],
   "scripts": {
-    "build": "babel -d ./lib src",
-    "prepublish": "npm run build",
-    "test": "istanbul cover ./node_modules/mocha/bin/_mocha",
-    "prepublish:test": "npm run prepublish && npm run test",
     "gen-doc": "jsdoc2md --src src/telegram.js -t README.hbs > README.md",
+    "build": "babel -d ./lib src",
+    "prepublish": "npm run build && npm run gen-doc && contributor",
     "eslint": "eslint ./src ./test ./examples",
-    "pretest": "npm run eslint && npm run build"
+    "pretest": "npm run build",
+    "test": "npm run eslint && istanbul cover ./node_modules/mocha/bin/_mocha"
   },
   "author": "Yago Pérez <yagoperezs@gmail.com>",
   "license": "MIT",