Merge pull request #112 from RonasIT/dpankratov/readme-update

documentation: update readme.md

Author: astorozhevsky

readme.md

@@ -182,9 +182,21 @@ You can specify the way to collect documentation by creating your own custom dri
 
 You can find example of drivers [here](https://github.com/RonasIT/laravel-swagger/tree/master/src/Drivers).
 
+### Viewing OpenAPI documentation
+
+As of version 2.2, the package includes the ability to switch between OpenAPI documentation
+viewers. To access different viewers, modify the `documentation_viewer` configuration.
+This change is reflected immediately, without the need to rebuild the documentation file.
+
+### Merging additional documentations
+
+The package supports the integration of the primary documentation with additional valid
+OpenAPI files specified in the `additional_paths` configuration.
+
 ## Contributing
 
-Thank you for considering contributing to Laravel Swagger plugin! The contribution guide can be found in the [Contributing guide](CONTRIBUTING.md).
+Thank you for considering contributing to Laravel Swagger plugin! The contribution guide
+can be found in the [Contributing guide](CONTRIBUTING.md).
 
 ## License