[latexila] spell: link to gspell repo in the readme

[Sébastien Wilmet <swilmet src gnome org>]

commit ed523a7f21575dcdae1cf16126a865b5a1f4e25f
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Sep 26 20:28:48 2015 +0200

    spell: link to gspell repo in the readme
    
    Since it can be difficult to find, currently.

 README.in |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/README.in b/README.in
index 9ccb791..a64d5f1 100644
--- a/README.in
+++ b/README.in
@@ -31,6 +31,9 @@ yelp-tools
 If you are installing LaTeXila from a tarball, you don't have to install Vala
 because the C code is already generated.
 
+Link to gspell:
+https://github.com/swilmet/gspell
+
 
 Installation
 ============