Update examples/account/account_allowance_approve_transaction_hbar.py

Co-authored-by: Copilot <[email protected]>
Signed-off-by: Mathew Joseph <[email protected]>

Author: mathew1046

examples/account/account_allowance_approve_transaction_hbar.py

@@ -13,7 +13,7 @@
       transfer a specified amount of HBAR without taking custody of the funds.
 
 High-Level Steps:
-    Pre-requisites:
+    Prerequisites:
         1. Initialize a client with an existing operator account as the Owner.
 
     Required: