[gtk-osx] Update README.md: fix rendering

[John Ralls <jralls src gnome org>]

commit 34bd6422caa1f52052fd487da6ecb19f6187b1c9
Author: Ludovic Rousseau <ludovic rousseau gmail com>
Date:   Fri Sep 27 15:03:44 2019 +0000

    Update README.md: fix rendering

 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README.md b/README.md
index fecc750..6840576 100644
--- a/README.md
+++ b/README.md
@@ -147,8 +147,8 @@ told jhbuild to use (set with ```moduleset = ``` in jhbuildrc-custom
 or the ```-m``` option to jhbuild) it will build that. This allows you
 to have a custom bootstrap.modules for your project.
 
-If you set ```use_local_modules``` to true and set ```modulesets_dir =
-``` to a valid path containing a file named bootstrap.modules then
+If you set ```use_local_modules``` to true and set ```modulesets_dir =```
+to a valid path containing a file named bootstrap.modules then
 bootstrap-gtk-osx will build that moduleset instead.
 
 Note that in order to actually work the bootstrap.modules moduleset