more docs

docs/tutorial.md

@@ -11,7 +11,7 @@ In other word, the code usually works as expected when you see it. So, nothing u
 
 __Other documents to read__ maybe after this one:
 
-- [Advanced topics](advanced_topics.md)
+- [Advanced topics](advanced_topics.md), [declaring arguments](declaring_arguments.md)
 - [OOP notes](OOP.md)
 - [math in Lyng](math.md)
 - Some class references: [List], [Real], [Range], [Iterable], [Iterator]