development_security.md: Fix JWT link

Author: adriendupuis

docs/infrastructure_and_maintenance/security/development_security.md

@@ -102,7 +102,7 @@ See [Authenticating a user with multiple user provider](user_authentication.md#a
 
 ## JWT authentication
 
-To use [JWT authentication](https://jwt.io/) with [[= product_name =]], in the provided `config/packages/lexik_jwt_authentication.yaml` file, modify the existing configuration by setting `authorization_header` to `enabled`:
+To use [JWT authentication](https://www.jwt.io/) with [[= product_name =]], in the provided `config/packages/lexik_jwt_authentication.yaml` file, modify the existing configuration by setting `authorization_header` to `enabled`:
 
 ``` yaml hl_lines="8"
 lexik_jwt_authentication: