I read a README file I wrote a few weeks ago and decided it didn't have enough information, so it's now twice as long with a lot more detail.

I'm the only one who will ever read or use the file, but I have learned I cannot rely on my own memory a few months or years from now when I need to revisit the project or do something similar.

Make notes! Make more notes. It's a text file, it won't take up much space but it might save you a bunch of time in the future.