package/cog: add an upstream URL to Config.in

Add an upstream URL to the help text in Config.in. This
addresses the 'Missing' URL status in the package stats
web page output.

Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/cog/Config.in

@@ -14,6 +14,8 @@ config BR2_PACKAGE_COG
 	  not provide any chrome, and is suitable to be used
 	  as a Web application container.
 
+	  https://github.com/Igalia/cog
+
 if BR2_PACKAGE_COG
 
 config BR2_PACKAGE_COG_PROGRAMS_HOME_URI