Support Jekyll Drafts

See #28, release log:

• f07faec by @rultor: Merge branch '__rultor'
• a78479b by @yegor256: zerocracy badge
• c5bdd85: Update readme with —drafts
• c587ca4: Add 6th param to jekyll build ...
• 0db8b7a: Add —drafts and pass as 6th pa...
• 80c9f6d: Fix typo in readme

Released by Rultor 1.66.1, see build log