changed udc url in accounts

Author: LandauRaz

components/Starknet/modules/architecture-and-concepts/pages/accounts.adoc

@@ -175,7 +175,7 @@ However, unlike Ethereum, only the nonce of account contracts — that is, those
 New accounts can be deployed in the following ways:
 
 * Sending a `DEPLOY_ACCOUNT` transaction, which does not require a preexisting account.
-* Using the xref:accounts/universal-deployer.adoc[Universal Deployer Contract (UDC)], which requires an existing account to send the `INVOKE` transaction
+* Using the https://docs.openzeppelin.com/contracts-cairo/0.12.0/udc[Universal Deployer Contract (UDC)^], which requires an existing account to send the `INVOKE` transaction
 
 Upon receiving one of these transactions, the sequencer performs the following steps: