Andrew Miller improved the documentation quality in the nmfs-openscapes/2024-nmfs-champions repository by correcting a spelling error and adding a clarifying sentence to enhance readability and accuracy. He used Markdown to implement these changes, focusing on clear, traceable commits that support both onboarding and ongoing contributor experience. By refining the documentation, Andrew addressed potential confusion for new users and provided more reliable reference material for the project. His work emphasized attention to detail in documentation and leveraged his skills in technical writing and version control, resulting in a more accessible and accurate resource for both users and contributors.