[docs] fix language switch problem and chinese page footer

docs/jstorm-doc/_includes/navbar.html

@@ -100,7 +100,7 @@
             <li class="dropdown">
               <a href="{{ language }}" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Language <span class="caret"></span></a>
                 <ul class="dropdown-menu" role="menu">
-                  <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}">English</a></li>
+                  <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}/index.html">English</a></li>
                   <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}/index_cn.html">中文</a></li>
 
               </ul>

docs/jstorm-doc/_includes/navbar_cn.html

@@ -98,7 +98,7 @@
             <li class="dropdown">
               <a href="{{ language }}" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Language <span class="caret"></span></a>
                 <ul class="dropdown-menu" role="menu">
-                  <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}">English</a></li>
+                  <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}/index.html">English</a></li>
                   <li class="{% if page.url contains libs_page.url %}active{% endif %}"><a href="{{ site.baseurl }}/index_cn.html">中文</a></li>
 
               </ul>

docs/jstorm-doc/_layouts/plain.html

@@ -80,9 +80,9 @@ <h1>{{ page.title }}</h1>
     <h1>{{ page.title }}{% if page.is_beta %} <span class="beta">Beta</span>{% endif %}</h1>
 	{{ content }}
   <div class="footer">
-      发现错误？想参与编辑？
+      Caught a mistake or want to contribute to the documentation? 
       <a href="https://github.com/alibaba/jstorm/edit/master/docs/jstorm-doc/{{ page.path }}" target="_blank">
-        在 Github 上编辑此页！
+        Edit this page on Github!
       </a>
   </div>
   {% endif %}

docs/jstorm-doc/_layouts/plain_cn.html

@@ -79,6 +79,12 @@ <h1>{{ page.title }}</h1>
   <div class="col-md-8 col-md-offset-2 text">
     <h1>{{ page.title }}{% if page.is_beta %} <span class="beta">Beta</span>{% endif %}</h1>
 	{{ content }}
+  <div class="footer">
+      发现错误？想参与编辑？
+      <a href="https://github.com/alibaba/jstorm/edit/master/docs/jstorm-doc/{{ page.path }}" target="_blank">
+        在 Github 上编辑此页！
+      </a>
+  </div>
   </div>
   {% endif %}
 {% endif %}

docs/jstorm-doc/index_cn.md

@@ -1,6 +1,73 @@
 ---
-title: Performance
-layout: plain_cn
+title: "Scalable Stream Data Processing"
+layout: base_cn
 ---
 
-TBD
+<div class="row">
+  <div class="col-sm-12"><p class="lead" markdown="span">**Alibaba JStorm** 是一个非常牛X的流计算框架</p></div>
+</div>
+
+<div class="row">
+  <div class="col-md-6" markdown="1">
+
+**Flink’s core** is a [streaming dataflow engine](features.html) that provides data distribution, communication, and fault tolerance for distributed computations over data streams.
+
+Flink includes **several APIs** for creating applications that use the Flink engine:
+
+1. [DataStream API]({{ site.docs-snapshot }}/apis/streaming/index.html) for unbounded streams embedded in Java and Scala, and
+2. [DataSet API]({{ site.docs-snapshot }}/apis/batch/index.html) for static data embedded in Java, Scala, and Python,
+3. [Table API]({{ site.docs-snapshot }}/apis/batch/libs/table.html) with a SQL-like expression language embedded in Java and Scala.
+
+Flink also bundles **libraries for domain-specific use cases**:
+
+1. [CEP]({{ site.docs-snapshot }}/apis/streaming/libs/cep.html), a complex event processing library,
+2. [Machine Learning library]({{ site.docs-snapshot }}/apis/batch/libs/ml/index.html), and
+3. [Gelly]({{ site.docs-snapshot }}/apis/batch/libs/gelly.html), a graph processing API and library.
+
+You can **integrate** Flink easily with other well-known open source systems both for [data input and output](features.html#deployment-and-integration) as well as [deployment](features.html#deployment-and-integration).
+  </div>
+  <div class="col-md-6 stack text-center">
+    <!-- https://docs.google.com/drawings/d/1XCNHsBDAq0fP-TSazE4CcrUinrC37JFiuXAoAEZZavE/ -->
+    <img src="{{ site.baseurl }}/img/flink-stack-frontpage.png" alt="Apache Flink Stack" width="480px" height="280px">
+  </div>
+  </div>
+---
+
+<div class="row">
+  <div class="col-sm-6" markdown="1">
+## Getting Started
+
+Download the **latest stable release** and run Flink on your machine, cluster, or cloud:
+
+<div class="text-center download-button">
+  <a href="downloads.html" class="btn btn-primary" markdown="1">**Download** Apache Flink {{ site.stable }}</a>
+  <a href="{{ site.github }}" class="btn btn-info" markdown="1">Apache Flink on **GitHub**</a>
+</div>
+
+The documentation contains a [setup guide]({{ site.docs-snapshot }}/setup) for all deployment options.
+
+The [programming guide]({{ site.docs-snapshot }}/apis/programming_guide.html) contains all information to get you started with writing and testing your Flink programs.
+
+**Check out the [documentation]({{ site.docs-snapshot }}) for the next steps.**
+
+</div>
+
+<div class="col-sm-6" markdown="1" style="padding-bottom:1em">
+## Latest News
+
+<ul class="list-group">
+{% for post in site.posts limit:5 %}  
+      <li class="list-group-item"><span>{{ post.date | date_to_string }}</span> &raquo;
+        <a href="{{ site.baseurl }}{{ post.url }}">{{ post.title }}</a>
+      </li>
+{% endfor %}
+</ul>
+
+**Check out [the news](blog/) for all posts.**
+  </div>
+</div>
+
+<footer class="small">
+  <hr>
+  Google Groups: <a target="_blank" href="https://groups.google.com/forum/#!forum/jstorm-user">jstorm-user</a>, QQ Groups: 228374502
+</footer>