Incorrect "keysize" option and option separator

[sasuw]

The line

cryptsetup --type luks2 --cipher xchacha20,aes-adiantum-plain64 --hash sha256 --iter-time 5000 –keysize 256 --pbkdf argon2i luksFormat /dev/mmcblk0p2

should be

cryptsetup --type luks2 --cipher xchacha20,aes-adiantum-plain64 --hash sha256 --iter-time 5000 --key-size 256 --pbkdf argon2i luksFormat /dev/mmcblk0p2

(the option separator for "key-size" should be two hyphens instead of one en dash and the "key-size" option has a hyphen, i.e. "key-size" instead of "keysize")

[fspreiss]

There are already PRs (#4 and #5) to address this, but unfortunately the repository owner hasn't reacted to any of them yet.

@rr-developer, given that you are the repository owner, would you mind merging one of the two PRs?