Wrap `[u8; WORD_LENGTH]` under a `struct Word([u8; WORD_LENGTH])` in order to `impl Display for Word` if you really want a base 64 display?

[Manuthor]

Maybe wrap [u8; WORD_LENGTH] under a struct Word([u8; WORD_LENGTH]) in order to impl Display for Word if you really want a base 64 display?

Originally posted by @tbrezot in #90 (comment)