r105

c8ffa9a test: update explain snapshots (Meghan Denny)

f843aa9 files.zig: when a file is a link to a directory, walk it (Meghan Denny)

441e046 cmd/init: tidy (Meghan Denny)

c2a58ca update deps (Meghan Denny)

a690b63 docs/tutorial: no need to run zig init anymore (Meghan Denny)