Update lib/wibox/template.lua

Co-authored-by: Aire-One <aireone@aireone.xyz>

lib/wibox/template.lua

@@ -134,7 +134,7 @@ end
 -- Updates are batched. Multiple calls to @{update} within the same event loop
 -- iteration will be collected. At the end of the loop iteration, they will be combined into 
 -- a single call to the function provided as @{update_callback}.
--- All arguments are passed to the queued `update_callback` call.
+-- All the properties of the table argument are collected and provided to the queued @{update_callback} in the table parameter.
 --
 -- @tparam[opt={}] table args A table to pass to the widget update function.
 -- @method update