lts-doc: sort documentation alphabetically
As a follow up to #3651 (closed), and to #393 (closed), I've started from the top and am working my way down.
This is a WIP! Against v4.x!
I am posting this now because it is a big diff and will need eyes.
Docs that have been completed:
-
assert -
buffer -
child_process -
cluster -
console -
crypto -
dns -
filling in as I go
Help is more than welcome!