Fixed Typo

Changed myNFTs to ownedNFTs

Author: fayedaihall

docs/tutorial/05-non-fungible-tokens-2.md

@@ -87,7 +87,7 @@ Cadence is an object-oriented language. Inside a composite type, such as a [reso
 
 :::
 
-Dictionary definitions in Cadence don't always need the `@` symbol in the type specification, but because the `myNFTs` mapping stores resources, the whole field must become a resource type. Therefore, you need the `@` symbol indicating that `ownedNFTs` is a resource type.
+Dictionary definitions in Cadence don't always need the `@` symbol in the type specification, but because the `ownedNFTs` mapping stores resources, the whole field must become a resource type. Therefore, you need the `@` symbol indicating that `ownedNFTs` is a resource type.
 
 As a result, all the rules that apply to resources apply to this type.