Update Progress English doc (ant-design#7540)

Fixed minor typos.

components/progress/index.en-US.md

@@ -4,11 +4,11 @@ type: Feedback
 title: Progress
 ---
 
-To display the current progress of an operation flow.
+Display the current progress of an operation flow.
 
 ## When To Use
 
-If it will take a long time to complete the operation, you can use `Progress` to show the current progress and status.
+If it will take a long time to complete an operation, you can use `Progress` to show the current progress and status.
 
 - When an operation will interrupt the current interface, or it needs to run in the background for more than 2 seconds.
 - When you need to display the completion percentage of an operation.
@@ -17,14 +17,14 @@ If it will take a long time to complete the operation, you can use `Progress` to
 
 Property | Description | Type | Default
 -----|-----|-----|------
-type | to set the type, options: `line` `circle` `dashboard`| string | line
+type | to set the type, options: `line` `circle` `dashboard`| string | `line`
 percent | to set the completion percentage | number | 0
 format | template function of the content | function(percent) | `percent => percent + '%'`
-status | to set the status of the progress, options: `success` `exception` `active` | string | -
-showInfo | determine whether to display the progress value and the status icon | boolean | true
+status | to set the status of the Progress, options: `success` `exception` `active` | string | -
+showInfo | whether to display the progress value and the status icon | boolean | true
 strokeWidth `(type=line)` | to set the width of the progress bar, unit: `px` | number | 10
 strokeWidth `(type=circle)` | to set the width of the circular progress bar, unit: percentage of the canvas width | number | 6
 width `(type=circle)` | to set the canvas width of the circular progress bar, unit: `px` | number | 132
 gapDegree `(type=circle)` | the gap degree of half circle, 0 ~ 360 | number | 0
-gapPosition `(type=circle)` | the gap position | Enum{ 'top', 'bottom', 'left', 'right' } | `top`
+gapPosition `(type=circle)` | the gap position, options: `top` `bottom` `left` `right` | string | `top`