Worked on the withastro/docs repository to enhance documentation reliability by correcting the environment variable file naming in the setup guide. Addressed a documentation bug that clarified the use of the .env.testing file for the testing workflow, reducing onboarding friction and minimizing misconfigurations for contributors. The update was delivered as a single, traceable commit, ensuring that the documentation accurately reflects the actual development process. Utilized Markdown for precise documentation changes and applied strong attention to detail in technical writing. This focused contribution improved the clarity and maintainability of the documentation, supporting both new and existing developers working with the project.