Worked on the nhsengland/datascience repository to enhance documentation reliability by updating and fixing case study hyperlinks across multiple Markdown files. Focused on documentation hygiene, the developer audited and revised links in key patient-data documents to ensure users could access current and accurate case studies. Using Git-based source control and cross-file coordination, they systematically identified outdated URLs and replaced them with valid ones, reducing the risk of broken links and improving overall user trust. The work demonstrated attention to detail in maintaining internal knowledge assets, leveraging skills in Markdown documentation and version control to support ongoing documentation quality.