fix(docs): improve wording for detecting payment issues in liquidation process

Author: fassko

docs/fassets/5-liquidation.mdx

@@ -310,7 +310,7 @@ This challenge is performed in the following way:
 One or more legal payments can make the balance on the agent's underlying address too small or equivalently make the free underlying balance negative.
 This situation can happen because gas fees might be unknown when redemptions are approved.
 
-This situation would normally be detected after all payments are reported, but in this way it can be caught as soon as the payments are finalized on the underlying chain:
+This situation would normally be detected after all payments are reported, but with this approach it can be caught as soon as the payments are finalized on the underlying chain:
 
 1. The challenger detects one or more legal payments from the same agent's underlying address and the total outgoing amount exceeds the sum of all redemption values plus the total free balance.
    The challenger obtains proofs for all of them using the Flare Data Connector.