Use single quotes (#41)

Use single quotes instead of double quotes so the description message is displayed properly ('batteries included' instead of "batteries included")

Signed-off-by: Martin Peris <[email protected]>

desktop_full/package.xml

@@ -3,7 +3,7 @@
 <package format="2">
   <name>desktop_full</name>
   <version>0.10.0</version>
-  <description>Provides a "batteries included" experience to novice users.</description>
+  <description>Provides a 'batteries included' experience to novice users.</description>
 
   <maintainer email="[email protected]">Geoffrey Biggs</maintainer>