Fix required states for List repository tree

doc/api/repositories.md

@@ -22,11 +22,11 @@ Supported attributes:
 
 | Attribute   | Type           | Required | Description |
 | :---------- | :------------- | :------- | :---------- |
-| `id`        | integer/string | no       | The ID or [URL-encoded path of the project](index.md#namespaced-path-encoding) owned by the authenticated user. |
-| `path`      | string         | yes      | The path inside repository. Used to get content of subdirectories. |
-| `ref`       | string         | yes      | The name of a repository branch or tag or if not given the default branch. |
-| `recursive` | boolean        | yes      | Boolean value used to get a recursive tree (false by default). |
-| `per_page`  | integer        | yes      | Number of results to show per page. If not specified, defaults to `20`. [Learn more on pagination](index.md#pagination). |
+| `id`        | integer/string | yes      | The ID or [URL-encoded path of the project](index.md#namespaced-path-encoding) owned by the authenticated user. |
+| `path`      | string         | no       | The path inside repository. Used to get content of subdirectories. |
+| `ref`       | string         | no       | The name of a repository branch or tag or if not given the default branch. |
+| `recursive` | boolean        | no       | Boolean value used to get a recursive tree (false by default). |
+| `per_page`  | integer        | no       | Number of results to show per page. If not specified, defaults to `20`. [Learn more on pagination](index.md#pagination). |
 
 ```json
 [