Worked on the QuantEcon/lecture-python.myst repository, focusing on improving the accuracy and clarity of lecture materials. Addressed a documentation bug by correcting a state variable notation in the McCall model lecture notes, replacing an incorrect 'R' with 'W' to accurately reflect the intended state space. This targeted fix helped maintain the integrity of the educational content and reduced potential confusion for students. The work involved careful review and editing of Markdown-based documentation, emphasizing attention to detail and consistency across materials. Demonstrated proficiency in documentation practices and version control, contributing to the overall quality and reliability of the repository’s instructional resources.