Clearer description of encryption shortcut.

Since version tags/releases have been  introduced lately, Arch users are
now able to choose between a 'stable' and a 'development' package.

rm mbsync requirement for online storage

the new script manually searches for environmental variables
so that it can work from a cronjob
and additionally searches for all Xorg displays on Linux
so that the display notification should appear correctly
no doubt there will be more bugs, but this is what the people want
and it's worth working out

- Fix formatting, typos, and make the format cohesive.
- Move LICENSE to defacto spot and more prominent
- Move dependencies sections to be a sub-section of the Install section since it was a bit confusing as to why the dependencies were after the Install section.

* mutt-wizard works on FreeBSD, also changed mbsync with isync (actual package name)

* Added pgp support

* Run serverinfo query based on if proton or not

* If domain is already protonmail don't ask if it is

* Fix protonmail fingerprint extraction

* Update docs re: protonmail bridge timing out

Clarify 'long' to 'longer'. Pedantic, 50% more bloat in characters but correct.