Merge branch 'jk/asciidoctor-section-heading-markup-fix' into maint

* jk/asciidoctor-section-heading-markup-fix: Documentation: fix section header mark-up

Junio C Hamano committed Oct 16, 2015 at 14:32 UTC aa8f64dead9d1ea5965fe1248709f1879f0da79c

No changes.