Remove sublist spacing.
Remove a redundant section on source loading.
Better linking in 'running babushka' / 'running deps'.
Re-word the 'installing' / 'what it does' section.
Re-word 'installing' to introduce babushka.me/up more clearly.
Move dep running options from 'running babushka' to 'running deps'.

Also expand it with more examples.
Re-work 'sources' to make naming and updating behaviour clearer.
Link to https://babushka.me/up everywhere.
Remove a domain on a local link.