Add regexp for single-line section titles
Add regexp for single-line section titles

benignbala/asciidoctor,gjtorikian/asciidoctor,neontapir/asciidoctor,anthonny/asciidoctor,cuit-zhaxin/asciidoctor,anthonny/asciidoctor,glamouracademy/asciidoctor,asciidocfx/asciidoctor,pepijnve/asciidoctor,cesarmarinhorj/asciidoctor,yukisan/asciidoctor,pepijnve/asciidoctor,asciidocfx/asciidoctor,cuit-zhaxin/asciidoctor,glamouracademy/asciidoctor,mjang/mj-asciidoc,mjang/mj-asciidoc,gjtorikian/asciidoctor,benignbala/asciidoctor,neontapir/asciidoctor,yukisan/asciidoctor