Update serialization-of-cairo-types.adoc

Author: LandauRaz

components/Starknet/modules/architecture-and-concepts/pages/smart-contracts/serialization-of-cairo-types.adoc

@@ -1,7 +1,7 @@
 [id="serialization_of_types_in_Cairo"]
 = Serialization of Cairo types
 
-== Introduction
+== Overview
 
 The field element (`felt252`), which contains 252 bits, is the only actual type in the Cairo VM, so xref:data_types_using_at_most_252_bits[all data types that fit in 252 bits] are represented by a single felt and xref:data_types_using_more_than_252_bits[all data types that are larger than 252 bits] are represented by a list of felts. Therefore, in order to interact with a contract, you must know how to xref:serialization_of_data_types_using_more_than_252_bits[serialize any arguments that are larger than 252 bits to lists of felts] so you can correctly formulate the calldata in the transaction.