Precise the pedersen hash construction for contract trie. (#1214)

* Update starknet-state.adoc

Precise the correct way the pedersen function is used for the leaf in the contract trie root.

* Update components/Starknet/modules/architecture_and_concepts/pages/Network_Architecture/starknet-state.adoc

---------

Co-authored-by: Steve Goodman <39279277+stoobie@users.noreply.github.com>

components/Starknet/modules/architecture_and_concepts/pages/Network_Architecture/starknet-state.adoc

@@ -66,10 +66,14 @@ The information stored in the leaf is as follows:
 [,,subs="quotes"]
 ----
 _h_~Ped~(
-    class_hash,
-    storage_root,
-    nonce,
-    0
+  _h_~Ped~(
+    _h_~Ped~(
+      class_hash,
+      storage_root
+    ), 
+    nonce
+  ),
+  0
 )
 ----