skeleton

See #1, release log:

• 31517d7 by @yegor256: #1 typos
• 7a381c8 by @yegor256: #1 echo
• 52491fb by @yegor256: #1 check for emptiness
• 82ce863 by @yegor256: #1 ping
• 3e94f1e by @yegor256: #1 verbose
• ea43e07 by @yegor256: #1 while
• 0fd6ff0 by @yegor256: #1 doc
• e9337df by @yegor256: #1 star
• e501343 by @yegor256: #1 rultor
• d03a151 by @yegor256: #1 ubuntu
• 287596a by @yegor256: Merge pull request #2 from yeg...
• ec51ff1 by @renovate[bot]: Update actions/checkout digest...
• 8b80a98 by @yegor256: #1 start

Released by Rultor 2.0-SNAPSHOT, see build log