Merge branch 'doc_deps_local_rep' of https://github.com/ingwinlu/erlang.mk

doc/src/guide/asciidoc.asciidoc

@@ -5,6 +5,13 @@ Erlang.mk provides rules for generating documentation from
 AsciiDoc files. It can automatically build a user guide PDF,
 chunked HTML documentation and Unix manual pages.
 
+=== Requirements
+
+It is necessary to have http://asciidoc.org/[AsciiDoc], 
+http://xmlsoft.org/XSLT/xsltproc2.html[xsltproc] and
+http://dblatex.sourceforge.net/[dblatex] installed on your
+system for Erlang.mk to generate documentation from AsciiDoc sources.
+
 === Writing AsciiDoc documentation
 
 http://asciidoc.org/[AsciiDoc] is a text document format for

doc/src/guide/contributing.asciidoc

@@ -100,7 +100,8 @@ this is a bug. You can either open a ticket or send a pull
 request.
 
 To make sure that the documentation changes work, install
-Asciidoc on your system and run `make docs`.
+the listed xref:asciidoc[Requirements] on your system and
+run `make docs`.
 
 === Feature requests
 

doc/src/guide/deps.asciidoc

@@ -334,7 +334,7 @@ Erlang.mk will also export the `REBAR_DEPS_DIR` variable for
 compatibility with Rebar build tools, as long as they are
 recent enough.
 
-=== Dependencies local to the repository
+=== Many applications in one repository
 
 In addition to the dependencies that are fetched, Erlang.mk
 also allows you to have dependencies local to your repository.