Uncomfortable as it may be the teacher as actually trying to help you. I am glad that he or she is impressed with you sufficiently to offer to help you, even after you have completed their class.
The issue is not whether you can find it, but whether you can learn to adhere to published standards, and adapt to a an existing organizational system. Many places where you may be called upon to work in the future will require the same thing. It may be a research notebook for your Master's or PhD advisor or lab, a commenting system in a program or device you are helping build, or simply that your company has to meet the government's ISO standards.
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'The question of whether computers can think is like the question of whether submarines can swim.' - Edsgar Dijkstra