This commit updates the version of Chemacs used. It also adds a new
profile for testing Spacemacs in a clean way.
My dotspacemacs also went for the wrong org configuration file, this
is now fixed.
Chemacs2 is a utility for Emacs to switch between various profiles and
configurations of Emacs without a hassle.
It thus helps me run my fully configured Spacemacss alongside my new
attempt at configuring some vanilla Emacs after years of using
Spacemacs.
I also added Doom-Emacs for reference.
Since I am moving away from $HOME/.emacs.d, the last remaining file in
this directory has been moved to the equivalent $HOME/.config/emacs.
The $HOME/.emacs.d symlink also now points to a relative path, making it
username-agnostic.
