* Add main tanks and main assists to the praid frame configuration options

diff --git a/PerfectRaid_Frames.lua b/PerfectRaid_Frames.lua
index d17483a..e17d80e 100644
--- a/PerfectRaid_Frames.lua
+++ b/PerfectRaid_Frames.lua
@@ -265,6 +265,8 @@ function Frames:CreateEditFrame(parent)
 	makeCheck(L["Group 8"], "8")
 	makeCheck(L["All Classes"], "WARRIOR,DEATHKNIGHT,PRIEST,DRUID,SHAMAN,PALADIN,MAGE,ROGUE,WARLOCK,HUNTER")
 	makeCheck(L["All Groups"], "1,2,3,4,5,6,7,8")
+	makeCheck(L["Main tanks"], "MAINTANK")
+	makeCheck(L["Main assists"], "MAINASSIST")

 	for idx,button in ipairs(self.filters) do
 		if idx == 1 then