Altered pen descriptions for Readpads

Modified text to all the regular pens that detail how they're compatible with digital devices and regular paper, so their interactions with the Readpad makes sense

code/modules/paperwork/pen.dm

@@ -11,7 +11,7 @@
  * Pens
  */
 /obj/item/pen
-	desc = "It's a normal black ink pen."
+	desc = "It's a black ink pen, modified for use with both paper and Nanotransen-brand Digital-Readpads™!"
 	name = "pen"
 	icon = 'icons/obj/bureaucracy.dmi'
 	icon_state = "pen"
@@ -33,12 +33,12 @@
 	return(BRUTELOSS)
 
 /obj/item/pen/blue
-	desc = "It's a normal blue ink pen."
+	desc = "It's a blue ink pen, modified for use with both paper and Nanotransen-brand Digital-Readpads™!"
 	icon_state = "pen_blue"
 	colour = "blue"
 
 /obj/item/pen/red
-	desc = "It's a normal red ink pen."
+	desc = "It's a red ink pen, modified for use with both paper and Nanotransen-brand Digital-Readpads™!"
 	icon_state = "pen_red"
 	colour = "red"
 
@@ -48,7 +48,7 @@
 	colour = "white"
 
 /obj/item/pen/fourcolor
-	desc = "It's a fancy four-color ink pen, set to black."
+	desc = "It's a fancy four-color ink pen, set to black. Modified to be compatible with Nanotransen-brand Digital-Readpads™"
 	name = "four-color pen"
 	colour = "black"