Document offline and online web targets in INSTALL

diff --git a/Documentation/user/install.itely b/Documentation/user/install.itely
index 4821926c83157c83cf1a53acaa75b55db2b2cab5..ca8c94902dda7cde423c4aed32d0a98f51dc5977 100644 (file)
--- a/Documentation/user/install.itely
+++ b/Documentation/user/install.itely
@@ -177,14 +177,8 @@ or lyrics.
 
 You can view the documentation online at
 @uref{http://lilypond.org/doc/}, but you can also build it locally.
-This process requires a successful compile of lilypond.  The
-documentation is built by issuing
-
-@example
-make web
-@end example
-
-Building the website requires some additional tools and packages
+This process requires a successful compile of lilypond, and some
+additional tools and packages
 
 @itemize
 @item The @uref{http://netpbm.sourceforge.net/,netpbm utilities}
@@ -197,13 +191,38 @@ and the patch from
 @uref{http://bugs.ghostscript.com/show_bug.cgi?id=688017}.
 @end itemize
 
-The HTML files can be installed into the standard documentation path
-by issuing
+The documentation is built by issuing
+
+@example
+make web
+@end example
+
+After compilation, the HTML documentation tree is available in
+@file{out-www/offline-root/}, and can be browsed locally.
+
+The HTML and PDF files can be installed into the standard documentation
+path by issuing
 
 @example
 make out=www web-install
 @end example
 
+It is also possible to build a documentation tree in
+@file{out-www/online-root/}, with special processing, so it can be used
+on a website with content negociation for automatic language selection;
+this can be achieved by issuing
+
+@example
+make WEB_TARGETS=online web
+@end example
+
+@noindent
+and both @q{offline} and @q{online} targets can be generated by issuing
+
+@example
+make WEB_TARGETS="offline online" web
+@end example
+
 
 @node Building LilyPond
 @subsection Building LilyPond