QR codes on terminal for passing things to phone…

ie `qr foo`

```

#!/usr/bin/env python3

import os, sys, pyqrcode

p = ' '.join(sys.argv[1:])

if not p:

print(f'{sys.argv[0]} data-for-qr')

sys.exit(1)

q = pyqrcode.create(p)

print(q.terminal())

```