zh-trans: /docs/reference/setup-tools/kubeadm/generated/kubeadm_upgrade.md & README.md (#11174)

* Create kubeadm_upgrade.md

* Create README.md

content/zh/docs/reference/setup-tools/kubeadm/generated/README.md

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+<!-- All files in this directory are auto-generated from other repos. **Do not edit them manually. You must edit them in their upstream repo.**
+ -->
+此目录下的所有文件都是从其他仓库自动生成的。 **不要人工编辑它们。 您必须在上游仓库中编辑它们**

content/zh/docs/reference/setup-tools/kubeadm/generated/kubeadm_upgrade.md

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+<!-- 
+Upgrade your cluster smoothly to a newer version with this command.
+
+### Synopsis
+
+
+Upgrade your cluster smoothly to a newer version with this command.
+ -->
+
+此命令能将您的集群平滑升级到新版本。
+
+### 概要
+
+
+此命令能将您的集群平滑升级到新版本。
+
+
+```
+kubeadm upgrade [flags]
+```
+
+<!-- ### Options
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">help for upgrade</td>
+    </tr>
+
+  </tbody>
+</table>
+ -->
+### 选项
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">-h, --help</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">upgrade 帮助</td>
+    </tr>
+
+  </tbody>
+</table>
+
+<!-- ### Options inherited from parent commands
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--rootfs string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">[EXPERIMENTAL] The path to the 'real' host root filesystem.</td>
+    </tr>
+
+  </tbody>
+</table>
+ -->
+
+### 继承于父命令的选项
+
+<table style="width: 100%; table-layout: fixed;">
+  <colgroup>
+    <col span="1" style="width: 10px;" />
+    <col span="1" />
+  </colgroup>
+  <tbody>
+
+    <tr>
+      <td colspan="2">--rootfs string</td>
+    </tr>
+    <tr>
+      <td></td><td style="line-height: 130%; word-wrap: break-word;">[实验性] 主机根目录文件系统“真实”路径。</td>
+    </tr>
+
+  </tbody>
+</table>
+
+