From a900e375f267cee1793e9dd56d118a872c54535f Mon Sep 17 00:00:00 2001
From: zazzaz <izazzaz@hotmail.com>
Date: Fri, 18 Sep 2020 16:15:30 +0800
Subject: [PATCH] chore: update readme (#325)

---
 README.md                | 11 ++++++++---
 package.json             |  2 +-
 packages/locale/index.ts |  2 +-
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index f9dc795de7..c8216ea8c8 100644
--- a/README.md
+++ b/README.md
@@ -20,13 +20,18 @@ $ yarn bootstrap
 ```
 the project will install all dependencies and run `lerna bootstrap` to initialize the project
 
-## Storybook preview
+## Website preview
 With command
 ```bash
-$ yarn storybook
+$ yarn website-dev
 ```
-the project will launch `@storybook` client for you to preview all existing component
+the project will launch website for you to preview all existing component
 
+You can also use this command to start a blank page to debug
+```bash
+$ yarn website-dev:play
+//source file: ./website/play/index.vue
+```
 ## Component migration process
 1. Convert the item in https://github.com/element-plus/element-plus/projects/1 to an issue
 2. Assign yourself to the issue
diff --git a/package.json b/package.json
index 1c3ee7c43c..49c5556da0 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "lint": "eslint ./packages --ext .vue,.js,.ts",
     "website-build": "webpack --config ./website/webpack.config.js",
     "website-dev": "webpack-dev-server --config ./website/webpack.config.js",
-    "website-dev:play": "PLAY_ENV=true yarn website-dev"
+    "website-dev:play": "cross-env PLAY_ENV=true yarn website-dev"
   },
   "peerDependencies": {
     "vue": "^3.0.0-rc.9"
diff --git a/packages/locale/index.ts b/packages/locale/index.ts
index b17b055797..bd56d3c6db 100644
--- a/packages/locale/index.ts
+++ b/packages/locale/index.ts
@@ -10,7 +10,7 @@ function template(str: string, option) {
   })
 }
 
-export const t = (path:string, option): string => {
+export const t = (path:string, option?): string => {
   let value
   const array = path.split('.')
   let current = lang