message: docs(dialog): update description
diff: @@ -13,7 +13,7 @@ Vue.use(Dialog);
  ### Alert dialog
  -Used to prompt for some messages, only including one confirm button
  +Used to prompt for some messages, only including one confirm button.
  ```js
  Dialog.alert({
  @@ -32,7 +32,7 @@ Dialog.alert({
  ### Confirm dialog
  -Used to confirm some messages, including a confirm button and a cancel button
  +Used to confirm some messages, including a confirm button and a cancel button.
  ```js
  Dialog.confirm({
  @@ -65,9 +65,9 @@ Dialog.confirm({
  });
  ```
  -### \$dialog Method
  +### Global Method
  -After import the Dialog component, the \$dialog method is automatically mounted on Vue.prototype, making it easy to call within a vue component.
  +After import the Dialog component, the `$dialog` method is automatically mounted on Vue.prototype, making it easy to call within a vue component.
  ```js
  export default {
  