[gspell] docs: recommend to use Jhbuild to build from Git

[Sébastien Wilmet <swilmet src gnome org>]

commit f107fd7aa85ddc5b1f9deced8b7427a70fadb57c
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Oct 7 14:24:14 2015 +0200

    docs: recommend to use Jhbuild to build from Git

 README |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index b699d03..233e269 100644
--- a/README
+++ b/README
@@ -50,8 +50,8 @@ It is planned to remove the dependencies to GtkSourceView and libxml2 in a
 future version of gspell.
 
 
-Installation
-------------
+Installation from a tarball
+---------------------------
 
 Simple install procedure:
 
@@ -63,6 +63,14 @@ Simple install procedure:
 See the file 'INSTALL' for more detailed information.
 
 
+Installation from Git
+---------------------
+
+It is recommended to use Jhbuild:
+
+    https://wiki.gnome.org/Projects/Jhbuild
+
+
 How to contribute
 -----------------