The categories and headings might be a bit off compared to the actual content in "functionalities" sections (3 Application core functionality, 4 Frontend main functionalities, 5 Other functionalities)
(Re)think the main/subheadings
** either rename the existing or come up with new ones that would be more descriptive
(Re)organize the content where applicable
** See if content still matches the new sections, refactor accordingly
Feel free to cut down any suspicious / irrelevant parts
The categories and headings might be a bit off compared to the actual content in "functionalities" sections (3 Application core functionality, 4 Frontend main functionalities, 5 Other functionalities)