Advice on studying Emacs Lisp files

[Marcin Borkowski]

OK,

so I started a personal project of code reading.  I would like to start
with (standard) Emacs files.

However, here's a problem: I'd like to take notes while I'm studying.
And it's no surprise that I'd like to use Emacs to do this.  For obvious
reasons, I don't want to make my notes in the files themselves (as
comments).  OTOH, if I copy them to some personal directory, I lose the
ability to use find-function (which will jump to the original files).

Do you have any suggestions for a good workflow for that?  I might use
Org-mode (and links), but it would involve jumping between buffers,
which might not be optimal.  Maybe someone has a better idea?

Best,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University