Update 03-formatted-messages.mdx

Author: x87

src/content/docs/ch04/03-formatted-messages.mdx

@@ -45,3 +45,7 @@ PRINT_BIG_FORMATTED  {format} "~r~Horseshoes %d out of %d" {time} 3000 {style} 1
 	src="/img/ch-04-06.png"
 	alt="CLEO Formatted message with two numbers in red"
 />
+
+:::tip
+Sanny Builder Library provides the [complete reference documentation](https://library.sannybuilder.com/#/sa/script/extensions/CLEO/0AD0) for available format specifiers. 
+:::