* [docs] add info on accessing the playground via CLI
...and multiple available versions
* Update docs/en/getting-started/playground.md
Co-authored-by: Ilya Yatsishin <2159081+qoega@users.noreply.github.com>
Co-authored-by: Ilya Yatsishin <2159081+qoega@users.noreply.github.com>