Build binaries for Apple Silicon (#13)

* Build darwin/arm64 version on CI
* Update `x/sys` to a newer version with support for darwin/arm64

Fixed error going to stderr, -s not being verbose without -q

v0.6.2 - added -s and -m options

Corrected version number

Update README.md (#1)

fixed syntax of `go get` command

ARM release, removed Darwin 32-bit

v0.4.0 - changed slice presentation

v0.3.0 - better output for lists: no brackets are displayed

v0.2.0 release.

v0.1.1 release