Added documentation for Wazuh certificates tool in Docker

[c-bordon]

Description

Documentation support is added so that the Wazuh certificates tool can be used with Docker, this allows the use of this tool on systems such as macOS and Windows.

Checks

Docs building

• [x] Compiles without warnings.

Code formatting and web optimization

• [x] Uses three spaces indentation.
• [x] Adds or updates meta descriptions accordingly.
• [x] Updates the redirects.js script if necessary (check this guide).

Writing style

• [x] Uses present tense, active voice, and semi-formal registry.
• [x] Uses short, simple sentences.
• [x] Uses bold for user interface elements, italics for key terms or emphasis, and code font for Bash commands, file names, REST paths, and code.