add travis ci

.travis.yml

@@ -0,0 +1,16 @@
+language: node_js
+node-js: 
+  - "4"
+
+cache: 
+  apt: true
+  directories:
+    - node_modules
+
+before_install: 
+#  - npm install object-assign --save
+#   - npm install hexo-pagination --save
+
+script:
+  - npm test
+

README.md

@@ -1,3 +1,9 @@
+[![Build Status](https://travis-ci.org/Jamling/hexo-generator-index2.svg?branch=master)](https://travis-ci.org/Jamling/hexo-generator-index2)
+[![node](https://img.shields.io/node/v/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![npm downloads](https://img.shields.io/npm/dt/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![npm version](https://img.shields.io/npm/v/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![GitHub release](https://img.shields.io/github/release/jamling/hexo-generator-index2.svg)](https://github.com/Jamling/hexo-generator-index2/releases/latest)
+
 ## Introduction
 
 Filtered index generator for [Hexo]. Add filter feature base on the official index generator.

README_zh.md

@@ -1,3 +1,9 @@
+[![Build Status](https://travis-ci.org/Jamling/hexo-generator-index2.svg?branch=master)](https://travis-ci.org/Jamling/hexo-generator-index2)
+[![node](https://img.shields.io/node/v/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![npm downloads](https://img.shields.io/npm/dt/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![npm version](https://img.shields.io/npm/v/hexo-generator-index2.svg)](https://www.npmjs.com/package/hexo-generator-index2)
+[![GitHub release](https://img.shields.io/github/release/jamling/hexo-generator-index2.svg)](https://github.com/Jamling/hexo-generator-index2/releases/latest)
+
 ## 简介
 
 带过滤功能的[Hexo]首页生成器插件。在官方的首页生成器基础上添加了过滤指定分类/标签的功能。比如，在首页只显示指定分类下面的文章列表。