I would like to use a table of content. How does that work?
Sure, here you can find the 'Table of content' macro: https://confluence.atlassian.com/doc/table-of-contents-macro-182682099.html
It's pretty simple to use, in case you got questions, just let us know.
The following macros might also be of interest here:
Content Report: https://confluence.atlassian.com/doc/content-report-table-macro-317194676.html
Page Index: https://confluence.atlassian.com/doc/page-index-macro-182682092.html
Page Tree: https://confluence.atlassian.com/doc/page-tree-macro-163414255.html