docs: update Steps English doc (#7463)

Added code tags to string values.

components/steps/index.en-US.md

@@ -30,7 +30,7 @@ Property | Description | Type | Default
 current | to set the current step, counting from 0. You can overwrite this state by using `status` of `Step` | number | 0
 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
+direction | to specify the direction of the step bar, `horizontal` and `vertical` are currently supported | string | `horizontal`
 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
@@ -39,7 +39,7 @@ A single step in the step bar.
 
 Property | Description | Type | Default
 -----|-----|-----|------
-status | to specify the status. It will be automatically set by `current` of `Steps` if not configured. Optional values are: `wait` `process` `finish` `error` | string | wait
+status | to specify the status. It will be automatically set by `current` of `Steps` if not configured. Optional values are: `wait` `process` `finish` `error` | string | `wait`
 title | title of the step | string\|ReactNode | -
-description | detail of the step, optional property | string\|ReactNode | -
+description | description of the step, optional property | string\|ReactNode | -
 icon | icon of the step, optional property | string\|ReactNode | -