docs: update doc

src/radio/radio.en-US.md

@@ -36,7 +36,7 @@ name | String | - | \- | N
 options | Array | - | Typescript：`Array<RadioOption>` `type RadioOption = string \| number \| RadioOptionObj` `interface RadioOptionObj { label?: string \| TNode; value?: string \| number \| boolean; disabled?: boolean }`。[see more ts definition](https://github.com/Tencent/tdesign-vue-next/blob/develop/src/common.ts)。[see more ts definition](https://github.com/Tencent/tdesign-vue-next/tree/develop/src/radio/type.ts) | N
 readonly | Boolean | undefined | \- | N
 size | String | medium | options: small/medium/large。Typescript：`SizeEnum`。[see more ts definition](https://github.com/Tencent/tdesign-vue-next/blob/develop/src/common.ts) | N
-theme | String | radio | options: radio/button | N
+theme | String | radio | component Style。options: radio/button | N
 value | String / Number / Boolean | - | `v-model` and `v-model:value` is supported。Typescript：`T` `type RadioValue = string \| number \| boolean`。[see more ts definition](https://github.com/Tencent/tdesign-vue-next/tree/develop/src/radio/type.ts) | N
 defaultValue | String / Number / Boolean | - | uncontrolled property。Typescript：`T` `type RadioValue = string \| number \| boolean`。[see more ts definition](https://github.com/Tencent/tdesign-vue-next/tree/develop/src/radio/type.ts) | N
 variant | String | outline | options: outline/primary-filled/default-filled | N