v0.2.4c: fixed typos

src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/MissileWeapon.java

@@ -160,7 +160,7 @@ public class MissileWeapon extends Weapon {
 			}
 		}
 
-		info.append( "\n\nAs this weapon designed to be used at a distance, it is much less accurate if used at melee range.");
+		info.append( "\n\nAs this weapon is designed to be used at a distance, it is much less accurate if used at melee range.");
 		
 		if (isEquipped( Dungeon.hero )) {
 			info.append( "\n\nYou hold the " + name + " at the ready." );