fix(docs): clarify agent address ownership in redemption process documentation

Author: fassko

docs/fassets/3-redemption.mdx

@@ -34,7 +34,7 @@ This is the summary of the redemption process:
 
 4. Every agent pays the redeemer on the underlying chain and includes the payment reference in the memo field of the payment transaction.
 
-   Agents can pay the redemption from any address they control on the underlying chain.
+   Agents can pay the redemption from their own address they control on the underlying chain.
    It does not need to be the same address where they receive minting payments.
 
 5. After the payment is finalized, the agent uses the [FDC](/fdc/overview) to prove the payment and obtain a payment proof.