[libgweather] doap: Add missing description

[Bastien Nocera <hadess src gnome org>]

commit c99261a56e8a7b49166c5706e38925abb2face1f
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Dec 14 14:34:52 2017 +0100

    doap: Add missing description
    
    remote: ERROR: libgweather.doap is not valid:
    remote:    description property is required and should be a string literal

 libgweather.doap | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/libgweather.doap b/libgweather.doap
index 0669cd2..22714eb 100644
--- a/libgweather.doap
+++ b/libgweather.doap
@@ -5,6 +5,7 @@
          xmlns="http://usefulinc.com/ns/doap#";>
 
   <name xml:lang="en">libgweather</name>
+  <description xml:lang="en">Location and timezone database and weather-lookup library</description>
   <shortdesc xml:lang="en">Location and timezone database and weather-lookup library</shortdesc>
 
   <homepage rdf:resource="https://wiki.gnome.org/Projects/LibGWeather"; />