minor fixes

See #2, release log:

• 340cb60 by @yegor256: #2 date
• 9dab32f by @yegor256: #2 more tests
• 9bbe123 by @yegor256: #2 topic
• 8b18269 by @yegor256: #2 tail (c)
• 998c337 by @yegor256: no win
• 909793b by @yegor256: win
• 6a37c82 by @rultor: Merge branch '__rultor'
• c28421c by @rultor: Merge branch '__rultor'
• 7e7120a by @yegor256: #2 docker up
• 139273a by @renovate[bot]: Update teatimeguest/setup-texl...
• ebb0d2f by @renovate[bot]: Update JamesIves/github-pages-...
• 55e1fca by @yegor256: #2 gha fix
• 63cb336 by @yegor256: #2 ver up
• d385063 by @yegor256: #2 depends removed
• d412271 by @yegor256: #1 typo
• 330b118 by @yegor256: #1 no cat
• 800dfea by @yegor256: #1 gs
• 6dcd8b5 by @yegor256: #1 etoolbox
• a0759b6 by @yegor256: #1 cat
• e580aaa by @yegor256: #1 cfg
• and 4 more...

Released by Rultor 1.75.1, see build log