Update README.md

README.md

@@ -13,7 +13,7 @@
 
 ## Features 🎁
 
-- [x] Compatible with latest [Centrifugo 5.1.2](https://github.com/centrifugal/centrifugo/releases/tag/v5.1.2) 🚀
+- [x] Compatible with latest [Centrifugo 5.2.2](https://github.com/centrifugal/centrifugo/releases/tag/v5.2.2) 🚀
 - [x] Wrapper over [Centrifugo HTTP API](https://centrifugal.dev/docs/server/server_api#http-api) 🔌
 - [X] Authentication with JWT token (HMAC algorithm) for [anonymous](./Resources/docs/authentication.md#anonymous), [authenticated user](./Resources/docs/authentication.md#authenticated-user) and [private channel](./Resources/docs/authentication.md#private-channel) 🗝️
 - [x] [Batch request](./Resources/docs/centrifugo_service_methods.md#batch-request) in [JSON streaming format](https://en.wikipedia.org/wiki/JSON_streaming) 💪
@@ -38,7 +38,7 @@ $ composer req fresh/centrifugo-bundle
 |        `5.0.*`         | `>= 8.2` | `7.*`   | **Current version** |
 |        `4.1.*`         | `>= 8.2` | `6.*`   | Previous version    |
 
-By default, [Symfony Flex](https://flex.symfony.com) adds this bundle to the `config/bundles.php` file and adds required environment variables into `.env` file.
+By default, [Symfony Flex](https://symfony.com/doc/current/setup/flex.html) adds this bundle to the `config/bundles.php` file and adds required environment variables into `.env` file.
 In case when you ignored `contrib-recipe` during bundle installation it would not be done. Then you have to do this manually.
 
 #### Check the `config/bundles.php` file