During November 2024, Jeroen Dekker contributed to the stryker-mutator/stryker-net repository by enhancing the structure of the testing framework documentation. He focused on improving the readability and navigation of testing-framework.md by elevating a section header from H3 to H2, aligning the document with established documentation guidelines. This change, implemented using Markdown and leveraging his documentation skills, aimed to streamline the onboarding process for both contributors and users. While the update did not involve code changes or bug fixes, it addressed issue #3093 and improved the overall clarity and consistency of the technical documentation within the project.