I am not sure how to present my tunnel diode project.  So I have bee browsing forums to get some  ideas.  I looked at Writing.CD and Writing.SE and found them good.  I am particularly keen to see how other "Test Driven Developers" do.  The first couple of Q&As I read are good, including these: (1) https://writing.codidact.com/posts/10747
(2) https://writing.stackexchange.com/questions/12417/good-examples-of-and-practices-in-code-documentation.  So I am following some of their advice in my tunnel diode test programs.