Worked on the geerlingguy/linux repository to update documentation for the fault-injection subsystem, focusing on aligning the documentation with the current system configuration. The update involved removing references to the deprecated md-faulty driver and the CONFIG_MD_FAULTY option, ensuring that users are not misled by outdated information. Using reStructuredText (rst) and documentation best practices, the changes clarified subsystem usage and improved onboarding for new contributors. No code or functional changes were introduced, as the work centered on maintaining accurate and clear documentation. This approach supports ongoing maintenance and reduces confusion for users interacting with the fault-injection subsystem.