Merge pull request #909 from lvillis/master

docs: Update kk upgrade parameters

README.md

@@ -143,7 +143,7 @@ You have more control to customize parameters or create a multi-node cluster usi
 1. First, create an example configuration file
 
     ```shell script
-    ./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --file) path]
+    ./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --filename) path]
     ```
 
    **examples:**
@@ -225,7 +225,7 @@ Upgrading cluster with a specified version.
 #### Multi-nodes
 Upgrading cluster with a specified configuration file.
 ```shell script
-./kk upgrade [--with-kubernetes version] [--with-kubesphere version] [(-f | --file) path]
+./kk upgrade [--with-kubernetes version] [--with-kubesphere version] [(-f | --filename) path]
 ```
 * If `--with-kubernetes` or `--with-kubesphere` is specified, the configuration file will be also updated.
 * Use `-f` to specify the configuration file which was generated for cluster creation.
@@ -234,7 +234,7 @@ Upgrading cluster with a specified configuration file.
 
 Getting cluster info and generating kubekey's configuration file (optional).
 ```shell script
-./kk create config [--from-cluster] [(-f | --file) path] [--kubeconfig path]
+./kk create config [--from-cluster] [(-f | --filename) path] [--kubeconfig path]
 ```
 * `--from-cluster` means fetching cluster's information from an existing cluster. 
 * `-f` refers to the path where the configuration file is generated.

README_zh-CN.md

@@ -145,7 +145,7 @@ KubeKey 可以同时安装 Kubernetes 和 KubeSphere。根据 KubeSphere 所安
 1. 首先，创建一个示例配置文件
 
     ```shell script
-    ./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --file) path]
+    ./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --filename) path]
     ```
 
    **例子：**
@@ -225,7 +225,7 @@ KubeSphere 有多个可插拔功能组件，功能组件的介绍可参考 [配
 #### 多节点集群
 通过指定配置文件对集群进行升级。
 ```shell script
-./kk upgrade [--with-kubernetes version] [--with-kubesphere version] [(-f | --file) path]
+./kk upgrade [--with-kubernetes version] [--with-kubesphere version] [(-f | --filename) path]
 ```
 * `--with-kubernetes` 指定kubernetes目标版本。
 * `--with-kubesphere` 指定kubesphere目标版本。
@@ -235,7 +235,7 @@ KubeSphere 有多个可插拔功能组件，功能组件的介绍可参考 [配
 
 Getting cluster info and generating kubekey's configuration file (optional).
 ```shell script
-./kk create config [--from-cluster] [(-f | --file) path] [--kubeconfig path]
+./kk create config [--from-cluster] [(-f | --filename) path] [--kubeconfig path]
 ```
 * `--from-cluster` 根据已存在集群信息生成配置文件. 
 * `-f` 指定生成配置文件路径.