Maksim Kiselev

### Preflight Checklist - [X] I agree to follow the [Code of Conduct](https://github.com/deckhouse/deckhouse/blob/main/CODE_OF_CONDUCT.md) that this project adheres to. - [X] I have searched the [issue tracker](https://github.com/deckhouse/deckhouse/issues) for an issue that...

### Preflight Checklist - [X] I agree to follow the [Code of Conduct](https://github.com/deckhouse/deckhouse/blob/main/CODE_OF_CONDUCT.md) that this project adheres to. - [X] I have searched the [issue tracker](https://github.com/deckhouse/deckhouse/issues) for an issue that...

## Description Added documentation about Stronghold MFA methods ## Checklist - [ ] The code is covered by unit tests. - [ ] e2e tests passed. - [ ] Documentation...