C-Plus-Plus VS design-patterns-for-humans

in this repo https://github.com/TheAlgorithms/C-Plus-Plus most of the algorithms using @param or @returns and so on. i cant find any documentation on internet about @.Is this some built-in thing in c++ or the project defined like that. Can anybody help me please ?

C++: https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/sorting/merge_sort.cpp

2. Design patterns for humans

For the first point, what really helped me is taking a look at the various design patterns that are usually used. However, do not force a design pattern into code, it should come naturally to you which pattern fits to a problem. A great resource I can recommend is the README.md file on this GitHub project.

I'd recommend reading gang of four design patterns https://github.com/kamranahmedse/design-patterns-for-humans

If you want to learn more about design patterns, don't forget to take a look at Design Patterns for Humans, it's an incredible repository with many interesting examples that you can apply when you want to use a design pattern to solve a specific problem.

Ideally, we would write a facade for those methods and provide an API like:

https://github.com/kamranahmedse/design-patterns-for-humans#-singleton