[gnome-mines] Added spaces in description for consistency

[Sam Thursfield <sthursfield src gnome org>]

commit 287fc1967682f236df784d0f8ddf3bd5c7ab3483
Author: Dylan Richards <dylan richards81 gmail com>
Date:   Tue Dec 8 23:33:45 2020 +0000

    Added spaces in description for consistency

 data/org.gnome.Mines.gschema.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Mines.gschema.xml b/data/org.gnome.Mines.gschema.xml
index b3edfc1..9fe37bb 100644
--- a/data/org.gnome.Mines.gschema.xml
+++ b/data/org.gnome.Mines.gschema.xml
@@ -38,7 +38,7 @@
       <default>0</default>
       <range min="0" max="3" />
       <summary>Board size</summary>
-      <description>Size of the board (0-2 = small-large, 3=custom)</description>
+      <description>Size of the board (0-2 = small-large, 3 = custom)</description>
     </key>
     <key name="window-width" type="i">
       <default>600</default>