update workshop.txt

workshop.txt

@@ -5,7 +5,7 @@ description=Allows removing glass panes from large windows and installing them i
 description=
 description=Does [b]not[/b] allow replacing glass in the smaller framed windows, as you can already do this using the furniture tools.
 description=
-description=(Build 42 Only) Large glass panes can also be crafted through the same process as vanilla glass panes.
+description=(Build 42 Only) Large glass panes can also be crafted through the same process as vanilla glass panes. You need to learn the recipe from the Carlow Crystal Guide (the same magazine that gives the vanilla glass pane recipe).
 description=
 description=[h2]Sandbox Options[/h2]
 description=The formula that calculates the chance to break can be modified or disabled entirely with sandbox options.