update steps API

components/steps/demo/customized-progress-dot.md

@@ -17,10 +17,11 @@ You can customize the display for Steps with progress dot style.
 import { Steps, Popover } from 'antd';
 const Step = Steps.Step;
 
-const customDot = (dot, stepObj) => {
-  const content = <span>status: {stepObj.status}</span>;
-  return <Popover content={content}>{dot}</Popover>;
-};
+const customDot = (dot, { status, index }) => (
+  <Popover content={<span>step {index} status: {status}</span>}>
+    {dot}
+  </Popover>
+);
 
 ReactDOM.render(
   <Steps current={1} progressDot={customDot}>

components/steps/index.en-US.md

@@ -31,7 +31,7 @@ current | to set the current step, counting from 0. You can overwrite this state
 status | to specify the status of current step, can be set to one of the following values: `wait` `process` `finish` `error` | String | `process`
 size | to specify the size of the step bar, `default` and `small` are currently supported | String | `default`
 direction | to specify the direction of the step bar, `horizontal` and `vertical` are currently supported | String | horizontal
-progressDot | Steps with progress dot style | Boolean or Function(iconDot, {index, status, title, description}), by setting to a Function, you can customize the progress dot | false
+progressDot | Steps with progress dot style, customize the progress dot by setting it to a function | Boolean or (iconDot, {index, status, title, description}) => ReactNode | false
 
 ### Steps.Step
 

components/steps/index.zh-CN.md

@@ -32,7 +32,7 @@ title: Steps
 | status | 指定当前步骤的状态，可选 `wait` `process` `finish` `error` | String | process |
 | size | 指定大小，目前支持普通（`default`）和迷你（`small`）| String | default |
 | direction | 指定步骤条方向。目前支持水平（`horizontal`）和竖直（`vertical`）两种方向 | String | horizontal  |
-| progressDot | 点状步骤条 | Boolean or Function(iconDot, {index, status, title, description}), 配置为 Function 时可自定义步骤点 | false  |
+| progressDot | 点状步骤条，可以设置为一个 function | Boolean or (iconDot, {index, status, title, description}) => ReactNode | false |
 
 ### Steps.Step