[latexila] Better installation instructions

[SÃbastien Wilmet <swilmet src gnome org>]

commit 7c5d245ae08a026f8f9267f591dfcddf1163c6d7
Author: SÃbastien Wilmet <swilmet gnome org>
Date:   Tue Sep 4 21:28:55 2012 +0200

    Better installation instructions

 README.in |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index 9e9d49e..0009aed 100644
--- a/README.in
+++ b/README.in
@@ -44,8 +44,16 @@ site is hosted on sourceforge [2]. And there is a Debian package available [3].
 Installation
 ============
 
+From a tarball:
 $ ./configure
+
+From a git repository:
+$ ./autogen.sh
+
+Then build the sources:
 $ make
+
+And install everything:
 [ Become root if necessary ]
 $ make install