Worked on enhancing the FINE framework documentation within the FZJ-IEK3-VSA/FINE repository, focusing on improving clarity and onboarding for technical users. Expanded the documentation by integrating detailed mathematical descriptions and additional information across components such as DC power flow, basic component models, conversion, storage, transmission, and inter-component constraints. Utilized reStructuredText (RST) and technical writing skills to introduce new documentation files, update the main index, and restructure further reading sections. The work addressed the need for clearer technical guidance, resulting in a more organized and comprehensive documentation set that supports both new and experienced users of the framework.