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See #197, release log:

• 9b53dcc by @yegor256: #197 target ruby version
• 8b62ad9 by @yegor256: #197 ruby v
• 41ed600 by @yegor256: #197 pdd on release
• e38e83a by @yegor256: #197 install pdd
• 6fc444d by @yegor256: #197 puzzle fixed
• f4806c6 by @yegor256: #197 suppress section in confi...
• ecc8b2c by @yegor256: #196 added link to puzzle tree
• 220516e by @yegor256: typo
• 51be690 by @SilasReinagel: Removed trailing PDD Puzzle wh...
• 2fec417 by @SilasReinagel: Retrieves Organization Invitat...
• 7248a4d by @rultor: Merge branch '__rultor'
• 87f53e4 by @SilasReinagel: Added Unit Test for 404 page
• 6ebdc6a by @SilasReinagel: Set Content-Type to HTML for 4...
• 9a59201 by @rultor: Merge branch '__rultor'
• 9695dd0 by @rultor: Merge branch '__rultor'
• 65d309e by @SilasReinagel: Undid fix in order to try to g...
• de7a015 by @yegor256: #188 appveyor
• 2ec4a67 by @SilasReinagel: Fixed rubocop warnings
• 7b3ae0a by @SilasReinagel: Updated dependencies. Closes #...
• f2c6955 by @SilasReinagel: Added DocType to Html Page lay...
• and 1 more...

Released by Rultor 1.67.2, see build log