Merge pull request #1 from progit/fix-book

Виправлення warning'ів

progit.asc

@@ -1,14 +1,13 @@
-Pro Git
-=======
+= Pro Git
+Скот Чакон (Scott Chacon); Бен Страуб (Ben Straub)
 :doctype: book
 :docinfo:
 :toc-title: Зміст
 :toc:
 :toclevels: 2
 :pagenums:
 :front-cover-image: image:book/cover.png[width=1050,height=1600]
-
-ifdef::ebook-format[:leveloffset: -1]
+:icons: font
 
 include::book/license.asc[]
 
@@ -48,4 +47,4 @@ include::B-embedding-git-in-your-applications.asc[]
 
 include::C-git-commands.asc[]
 
-ifndef::ebook-format[include::index.asc[]]
+ifdef::backend-pdf[include::index.asc[]]