Added docs for the util functions and fixed timer docs

luacs-docs/lua/lua/Timer.lua

@@ -17,9 +17,9 @@ function Timer.GetTime() end
 -- @realm shared 
 function Timer.Wait(func, milliseconds) end
 
---- Calls a function after a certain amount of time.
+--- Calls a function in the next frame
 -- @realm shared
-function Timer.GetUsageMemory() end
+function Timer.NextFrame(func) end
 
 --- Same as GetTime()
 -- @realm shared 

luacs-docs/lua/lua/Util.lua

@@ -0,0 +1,17 @@
+-- luacheck: ignore 111
+
+--[[--
+Class providing several util functions.
+]]
+-- @code Util
+-- @pragma nostrip
+
+local Util = {}
+
+--- Returns a table with all items that have the given identifier.
+-- @realm shared 
+Util.GetItemsById = function (id) end
+
+--- Returns the Client that is currently controlling the Character, returns nil if no Client is controlling the Character.
+-- @realm shared 
+Util.FindClientCharacter = function (character) end