In a recent episode of Paul’s Security Weekly, an off-hand comment was made about documentation: you shouldn’t merely document what to do, nor even why, but also what you tried that didn’t work (ie, augment the status quo).
The upshot being, to save whomever comes to this note next (especially if it turns out to be yourself) effort you spent that was in vain.
This is similar to a famous quote attributed to Edison,
I have not failed. I’ve just found 10,000 ways that won’t work.
In light of my recommended, preferred practice and policy of “terse verbosity“, I would strongly suggest not placing the “doesn’t work” in-line, typically. Instead, put footnotes, an appendix, etc. But always
explain everything you did, but use bullet points if possible, rather than prose form
Loads of other goodies in that episode, too – but this one jumped-out as applicable to everyone.