[gnome-builder] newcomers: fix typo

[Christian Hergert <chergert src gnome org>]

commit 5dca980e1ebd98891564962fd47ecb3d9d310151
Author: Christian Hergert <chergert redhat com>
Date:   Fri Sep 20 10:12:12 2019 -0700

    newcomers: fix typo

 src/plugins/newcomers/gbp-newcomers-section.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/newcomers/gbp-newcomers-section.ui b/src/plugins/newcomers/gbp-newcomers-section.ui
index 978ba3a0f..88a16a318 100644
--- a/src/plugins/newcomers/gbp-newcomers-section.ui
+++ b/src/plugins/newcomers/gbp-newcomers-section.ui
@@ -77,7 +77,7 @@ Python</property>
                 <child>
                   <object class="GbpNewcomersProject">
                     <property name="name" translatable="yes">Gitg</property>
-                    <property name="description" translatable="yes">Gitg is graphical Git client</property>
+                    <property name="description" translatable="yes">Gitg is a graphical Git client</property>
                     <property name="icon-name">org.gnome.gitg</property>
                     <property name="uri">https://gitlab.gnome.org/GNOME/gitg.git</property>
                     <property name="visible">true</property>