Update BuildPage.lua

old link is dead. https://tinyurl.com/tsm2Ascension leads to https://web.archive.org/web/20131115010109/https://www.tradeskillmaster.com/wiki/index.php?title=TSM2.0_CustomPrice 
An archived version of the old wiki

TradeSkillMaster/GUI/BuildPage.lua

@@ -76,7 +76,7 @@ local function CreateCustomPriceFrame()
 		},
 		{
 			type = "Label",
-			text = format("See %s for more info.", TSMAPI.Design:GetInlineColor("link").."http://bit.ly/TSMCP|r"),
+			text = format("See %s for more info.", TSMAPI.Design:GetInlineColor("link").."https://tinyurl.com/tsm2Ascension|r"),
 			relativeWidth = 1,
 		},
 		{