mention wordlint in writing scripts readme
major updates to backup functions

.move to own file (for sourcing elsewhere without sourcing entire .zshrc)
.add completion
.add options
.add checks and better messages
.make snhometoexternal also do smart backup of tc volumes
.etc.
switch to ssd for root partition and add fstab

.change fstab to use labels
.add root mount options to grub config (and don't remount in fstab)
.use deadline scheduler for ssd
fix stupid error
start gvim with X regardless of desktop