To add a description about what a particular section is all about, in the table of contents, use the following code.
\addcontentsline{toc}{subsection}{the description}
Add the code after the each section declaration.
To add a description about what a particular section is all about, in the table of contents, use the following code.
\addcontentsline{toc}{subsection}{the description}
Add the code after the each section declaration.