docs: update assets default value

Author: jquense

README.md

@@ -28,10 +28,10 @@ Create a release commit, including configurable files.
 
 ### Options
 
-| Options        | Description                                                    | Default                                                                     |
-| -------------- | -------------------------------------------------------------- | --------------------------------------------------------------------------- |
-| `message`      | The message for the release commit. See [message](#message).   | `chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}`  |
-| `assets`       | Files to include in the release commit. See [assets](#assets). | `["package.json", "npm-shrinkwrap.json"]`                                   |
+| Options        | Description                                                    | Default                                                                        |
+| -------------- | -------------------------------------------------------------- | -------------------------------------------------------------------------------|
+| `message`      | The message for the release commit. See [message](#message).   | `chore(release): ${nextRelease.version} [skip ci]\n\n${nextRelease.notes}`     |
+| `assets`       | Files to include in the release commit. See [assets](#assets). | `['CHANGELOG.md', 'package.json', 'package-lock.json', 'npm-shrinkwrap.json']` |
 
 #### `message`