diff --git a/README.md b/README.md
index 2579e19..834974b 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,7 @@
 
 > Use this action to deploy your files to server using `SSH Private Key`
 
-> 使用此`action`部署你的项目到服务器上,`仅支持密钥对连接`
-中文介绍链接：[使用Github Action 部署项目到云服务器](https://zhuanlan.zhihu.com/p/107545396)
+> 使用此`action`部署你的项目到服务器上，中文介绍链接：[使用Github Action 部署项目到云服务器](https://zhuanlan.zhihu.com/p/107545396)
 
 ## 1. Inputs 
 
@@ -12,7 +11,7 @@
 `username` | yes| | SSH username
 `server` | yes| | Remote host
 `port`| yes | 22 | Remote host port
-`ssh_private_key`| yes| | You can copy private key from your `ssh_private_key.pem` file, and save to`repo/settings/secrets`![](./resource/secret.jpg)
+`ssh_private_key`| no| | You can copy private key from your `ssh_private_key` file, and save to`repo/settings/secrets`![](./resource/secret.jpg)
 `local_path`| yes| ./* | `local_path` of you project, if you want put single file:use path like `./myfile`, if you want put directory: use path like `./static/*`, it will put all files under `static` directory. Default to `./*`(will put all files in your repo).
 `remote_path`|yes|| Remote path
 `sftp_only`| no| | If your port only accepts the sftp protocol, set this option to `true`. However, please note that when this option is set to `true`, the remote folder will not be created automatically.
@@ -24,7 +23,9 @@
 
 > Be careful when use `delete_remote_files`, This will delete remote path  folder and all files in it
 
-## Action Examples
+-----
+
+## 2.Action Examples
 
 ```yaml
 on: [push]
@@ -69,9 +70,8 @@ jobs:
             password: ${{ secrets.FTP_PASSWORD }}
 ```
 
-## 1. [Deploy React App Example](https://github.com/wlixcc/React-Deploy)
+## 3. [Deploy React App Example](https://github.com/wlixcc/React-Deploy)
 
-> If you use nginx, all you need to do is upload the static files to the server after the project is built
 
 ```yaml
 on: [push]
@@ -103,37 +103,12 @@ jobs:
 
  ![](./resource/reactExample.jpg)
  
-## 2.Deploy Umi App Example (Ant Design Pro)
+ --------
 
-```yaml
-name: continuous deployment
-on: [push]
+## 4.Invalid format? You need keep format
 
-jobs:
-    deploy_job:
-    runs-on: ubuntu-latest
-    name: build&deploy
-    steps:
-        # To use this repository's private action, you must check out the repository
-        - name: Checkout
-        uses: actions/checkout@v2
-        
-        - name: Install umi
-        run: yarn global add umi  
+If you use the Ed25519 algorithm to generate an SSH key pair `ssh-keygen -t ed25519 -C "your_email@example.com"`,
+you need to note that the last line of the private key is a blank line. You need to keep this line when adding Repository secrets, otherwise it may lead to an `invalid format` error.
+ ![](./resource/keepformat.jpg)
 
-        - name: Install Dependencies
-        run: yarn
-        - name: Build
-        run: yarn build
-
-        - name: deploy file to server
-        uses: wlixcc/SFTP-Deploy-Action@v1.2.4
-        with:
-            username: 'root'
-            server: '${{ secrets.SERVER_IP }}'
-            ssh_private_key: ${{ secrets.SSH_PRIVATE_KEY }}
-            local_path: './dist/*'
-            remote_path: '/var/www/umiapp'
-            sftpArgs: '-o ConnectTimeout=5'
-```
- ![](./resource/umiExample.jpg)
+ 
\ No newline at end of file
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new file mode 100644
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