Update explore-intro.html

content/zh/docs/tutorials/kubernetes-basics/explore/explore-intro.html

@@ -41,9 +41,9 @@ weight: 10
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         <h2>Kubernetes Pods</h2>
 <!--
-        <p>When you created a Deployment in Module <a href="/docs/tutorials/kubernetes-basics/deploy-intro/">2</a>, Kubernetes created a <b>Pod</b> to host your application instance. A Pod is a Kubernetes abstraction that represents a group of one or more application containers (such as Docker or rkt), and some shared resources for those containers. Those resources include:</p>
+        <p>When you created a Deployment in Module <a href="/docs/tutorials/kubernetes-basics/deploy-intro/">2</a>, Kubernetes created a <b>Pod</b> to host your application instance. A Pod is a Kubernetes abstraction that represents a group of one or more application containers (such as Docker), and some shared resources for those containers. Those resources include:</p>
 -->
-        <p>在模块 <a href="/docs/tutorials/kubernetes-basics/deploy-intro/">2</a>创建 Deployment 时, Kubernetes 添加了一个 <b>Pod</b> 来托管你的应用实例。Pod 是 Kubernetes 抽象出来的，表示一组一个或多个应用程序容器（如 Docker 或 rkt ），以及这些容器的一些共享资源。这些资源包括:</p>
+        <p>在模块 <a href="/docs/tutorials/kubernetes-basics/deploy-intro/">2</a>创建 Deployment 时, Kubernetes 添加了一个 <b>Pod</b> 来托管你的应用实例。Pod 是 Kubernetes 抽象出来的，表示一组一个或多个应用程序容器（如 Docker），以及这些容器的一些共享资源。这些资源包括:</p>
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         <ul>
           <li>Shared storage, as Volumes</li>
@@ -84,11 +84,11 @@ weight: 10
         <div class="content__box content__box_fill">
 <!--
           <p><i>
-              A Pod is a group of one or more application containers (such as Docker or rkt) and includes shared storage (volumes), IP address and information about how to run them.
+              A Pod is a group of one or more application containers (such as Docker) and includes shared storage (volumes), IP address and information about how to run them.
             </i></p>
 -->
           <p><i>
-              Pod 是一组一个或多个应用程序容器（例如 Docker 或 rkt ），包括共享存储（卷), IP 地址和有关如何运行它们的信息。
+              Pod 是一组一个或多个应用程序容器（例如 Docker），包括共享存储（卷), IP 地址和有关如何运行它们的信息。
             </i></p>
         </div>
       </div>
@@ -120,7 +120,7 @@ weight: 10
         <p>Every Kubernetes Node runs at least:</p>
         <ul>
           <li>Kubelet, a process responsible for communication between the Kubernetes Master and the Node; it manages the Pods and the containers running on a machine.</li>
-          <li>A container runtime (like Docker, rkt) responsible for pulling the container image from a registry, unpacking the container, and running the application.</li>
+          <li>A container runtime (like Docker) responsible for pulling the container image from a registry, unpacking the container, and running the application.</li>
         </ul>
 -->
         <h2>工作节点</h2>
@@ -129,7 +129,7 @@ weight: 10
         <p>每个 Kubernetes 工作节点至少运行:</p>
         <ul>
           <li>Kubelet，负责 Kubernetes 主节点和工作节点之间通信的过程; 它管理 Pod 和机器上运行的容器。</li>
-          <li>容器运行时（如 Docker ，rkt ）负责从仓库中提取容器镜像，解压缩容器以及运行应用程序。</li>
+          <li>容器运行时（如 Docker）负责从仓库中提取容器镜像，解压缩容器以及运行应用程序。</li>
         </ul>
       </div>
       <div class="col-md-4">