For option A, how do you put the requirements in the repo? Another user mentioned the possibility of having a "req" folder at the same level of e.g. "src" and "

For option A, how do you put the requirements in the repo? Another user mentioned the possibility of having a "req" folder at the same level of e.g. "src" and "test". Maybe the file structure would match that of the other directories? And what do you use - excel files, word docs, .md files, something else?