[gedit] win32: Update README for GitLab

[Jeremy Bicha <jbicha src gnome org>]

commit 3a61465bddd025cb279e64a214b4e484b01c6a11
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sun Mar 3 07:40:30 2019 -0500

    win32: Update README for GitLab
    
    Closes: https://gitlab.gnome.org/GNOME/gedit/issues/115

 win32/README | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/win32/README b/win32/README
index 0fd0bfc33..8a7bd5b2f 100644
--- a/win32/README
+++ b/win32/README
@@ -3,7 +3,7 @@ To create the installer you need to follow the next steps:
  - launch msys2_shell.bat and update it with pacman -Syu, you will need to
    relaunch msys2_shell.bat after updating it
  - install git: pacman -S git
- - clone gedit: git clone git://git.gnome.org/gedit
+ - clone gedit: git clone https://gitlab.gnome.org/GNOME/gedit.git
  - cd gedit/win32
  - edit make-gedit-installer and set the right version of gedit
  - ./make-gedit-installer.bat