Update learn/architecture.md

Co-authored-by: Erin Shaben <eshaben@icloud.com>

Author: ilariae

learn/architecture.md

@@ -26,7 +26,7 @@ Wormhole has several noteworthy components. Before we discuss each component in
 - **[Guardian](#){target=\_blank}** - one of 19 validators in the Guardian Network that contributes to the VAA multi-sig
 - **[Spy](#){target=\_blank}** - a daemon that subscribes to messages published within the Guardian Network. A Spy can observe and forward network traffic, which helps scale up VAA distribution
 - **[API](#){target=\_blank}** - a REST server to retrieve details for a VAA or the Guardian Network
-- **[VAAs](/learn/infrastructure/vaas/){target=\_blank}** - verifiable Action Approvals (VAAs) are the signed attestation of an observed message from the wormhole core contract.
+- **[VAAs](/learn/infrastructure/vaas/){target=\_blank}** - Verifiable Action Approvals (VAAs) are the signed attestation of an observed message from the Wormhole Core Contract
 - **[Relayer](#){target=\_blank}** - any off-chain process that relays a VAA to the target chain
     - **Standard Relayers** - a decentralized relayer network that delivers messages that are requested on-chain via the Wormhole Relay Contract. Also referred to as Generic Relayers
     - **Specialized Relayers** - relayers that only handle VAAs for a specific protocol or cross-chain application. They can execute custom logic off-chain, reducing gas costs and increasing cross-chain compatibility. Currently, cross-chain application developers are responsible for developing and hosting specialized relayers