Fix typo. (#855)

henning-kvinnesland · AllenFang · commit b93c683f176d · 2019-03-17T13:30:35.000+08:00
`to cusom the sort caret` =&gt; `to customize the sort-caret`
diff --git a/docs/columns.md b/docs/columns.md
@@ -164,7 +164,7 @@ Enable the column sort via a `true` value given.
 ```
 
 ## <a name='sortCaret'>column.sortCaret - [Function]</a>
-Use`column.sortCaret` to custom the sort caret. This callback function accept two arguments: `order` and `column`
+Use`column.sortCaret` to customize the sort caret. This callback function accept two arguments: `order` and `column`
 
 ```js
 {

Original file line number	Diff line number	Diff line change
@@ -164,7 +164,7 @@ Enable the column sort via a `true` value given.
`164`	`164`	```
`165`	`165`
`166`	`166`	`## <a name='sortCaret'>column.sortCaret - [Function]</a>`
`167`		-Use`column.sortCaret` to custom the sort caret. This callback function accept two arguments: `order` and `column`
	`167`	+Use`column.sortCaret` to customize the sort caret. This callback function accept two arguments: `order` and `column`
`168`	`168`
`169`	`169`	```js
`170`	`170`	`{`