Update docs/cdk/agglayer/agglayer-rs.md

Co-authored-by: Jaime-N <149603094+Jaime-N@users.noreply.github.com>

Author: kmurphypolygon

docs/cdk/agglayer/agglayer-rs.md

@@ -2,7 +2,7 @@
 
 The AggLayer is a Rust-based web service designed to ensure safety for cross-chain asset transfers among heterogeneous blockchain networks. This safety is provided using ZKPs, allowing end-users to interoperate with no additional trust assumptions.  
 
-The service verifies the soundness of proofs from various CDK chains before forwarding them to L1 for verification.
+The service verifies the validity of proofs from various CDK chains before forwarding them to L1 for verification.
 
 It replaces the previous [Golang implementation](agglayer-go.md).