.gitignore: add gtkdoc's sections.txt, which is autogenerated in this project
.gitignore: add gtkdoc's sections.txt, which is autogenerated in this project

freedesktop-unofficial-mirror/wocky,noonien-d/wocky,noonien-d/wocky,noonien-d/wocky,freedesktop-unofficial-mirror/wocky,freedesktop-unofficial-mirror/wocky