Convert env-variable to example string
npm install env-to-example!Logo
```
from: api-host.com
to: xxx-xxxx.xxx
Examples
`
npx env-to-example "us-east-1" // => "xx-xxxx-x"
npx env-to-example "http://google.com" // => "http://xxxxxx.xxx"
npx env-to-example "some-secret-key" // => "xxxx-xxxxxx-xxx"
``