English bundle graphite description (#528)

* added graphite description

graphite now has a description
Yay. my fist commit

* fixed grammar

thanks @anuken

core/assets/bundles/bundle.properties

@@ -570,6 +570,7 @@ item.lead.description = A basic starter material. Used extensively in electronic
 item.coal.name = Coal
 item.coal.description = A common and readily available fuel.
 item.graphite.name = Graphite
+item.graphite.description = Mineralized carbon, used for ammunition and electrical insulation.
 item.titanium.name = Titanium
 item.titanium.description = A rare super-light metal used extensively in liquid transportation, drills and aircraft.
 item.thorium.name = Thorium