update README.md & fix bug

Author: lixiaojun629

README.md

@@ -2,7 +2,6 @@
 
 The UCloud Command Line Interface is a tool to manage your UCloud services. It's built on the [UCloud API](https://docs.ucloud.cn/api/summary/index).
 
-
 ### Install UCloud CLI
 
 You can install UCloud CLI by downloading executable binary file or building from the source code by yourself.
@@ -13,11 +12,17 @@ Archive links:
 [Linux](http://ucloud-sdk.ufile.ucloud.com.cn/ucloud-cli-linux-0.1.1-amd64.tgz)
 [Windows](http://ucloud-sdk.ufile.ucloud.com.cn/ucloud-cli-windows-0.1.1-amd64.zip)
 
-Download the binary file and extract to /usr/local/bin directory or add it to the $PATH
+SHA-256 hashcode
+```
+165f1ce4d413bf92e2794efe2722678eb80990602b81fd6e501d0c5f6bbf30bb ucloud-cli-linux-0.1.1-amd64.tgz
+e174c2ef268f4b653062d0e1331bf642134a0fafbb745b407969a194d7c1bc0c ucloud-cli-macosx-0.1.1-amd64.tgz
+75ff8741d9348881b3d992701590bc27f9278f207a3fb9a12ef0edfab19058d2 ucloud-cli-windows-0.1.1-amd64.zip
+```
+
+Download the binary file and extract to /usr/local/bin directory or add it to the $PATH. Take macOS as an example.
 ```
-$ curl -o ucloud-cli.tgz http://ucloud-sdk.ufile.ucloud.com.cn/ucloud-cli-<yourOS>-0.1.1-amd64.tgz
-$ tar -zxf ucloud-cli.tgz -C /usr/local/bin 
-or
+$ curl -o ucloud-cli.tgz http://ucloud-sdk.ufile.ucloud.com.cn/ucloud-cli-macosx-0.1.1-amd64.tgz
+$ echo "e174c2ef268f4b653062d0e1331bf642134a0fafbb745b407969a194d7c1bc0c *ucloud-cli-macosx-0.1.1-amd64.tgz" | shasum -a 256 -c
 $ tar -zxf ucloud-cli.tgz
 $ cp ucloud /usr/local/bin
 ```
@@ -35,6 +40,8 @@ $ make install
 
 ### Config UCloud CLI
 
-After install the cli, run 'ucloud config' to complete the cli configuration following the tips.
+After install the cli, run 'ucloud config' to complete the cli configuration following the tips. Local settings will be saved in directory $HOME/.ucloud
 
+### Uninstall UCloud CLI
 
+Remove the executable file /user/local/bin/ucloud and the directory $HOME/.ucloud

cmd/list.go

@@ -20,6 +20,7 @@ import (
 	"io/ioutil"
 
 	"github.com/spf13/cobra"
+	"github.com/ucloud/ucloud-cli/model"
 	"github.com/ucloud/ucloud-cli/util"
 	"github.com/ucloud/ucloud-sdk-go/service/uaccount"
 	"github.com/ucloud/ucloud-sdk-go/service/uaccount/types"
@@ -101,6 +102,9 @@ func getUserInfo() (*types.UserInfo, error) {
 	}
 	if len(resp.DataSet) == 1 {
 		userInfo = resp.DataSet[0]
+		model.ClientConfig.TracerData["userName"] = userInfo.UserEmail
+		model.ClientConfig.TracerData["userID"] = userInfo.UserEmail
+		model.ClientConfig.TracerData["companyName"] = userInfo.CompanyName
 		bytes, err := json.Marshal(userInfo)
 		if err != nil {
 			return nil, err