update zh-cn/application-dev/reference/arkui-ts/ts-drawing-components-ellipse.md.

Signed-off-by: NLiAn <lian15@huawei.com>
Signed-off-by: NLiAn <lian15@huawei.com>

zh-cn/application-dev/reference/arkui-ts/ts-drawing-components-ellipse.md

@@ -14,7 +14,7 @@
 
 ## 接口
 
-ellipse(options?: {width?: string | number, height?: string | number})
+Ellipse(options?: {width?: string | number, height?: string | number})
 
 **参数:**