linking to viem

Author: sbvegan

pages/builders/notices/sdk-deprecation.mdx

@@ -10,7 +10,7 @@ The Optimism SDK will officially be deprecated in Q1 2025. The project is shifti
 
 ### Breaking changes to expect
 
-The migration from the Optimism SDK to `viem` library brings several breaking changes:
+The migration from the Optimism SDK to [viem](https://viem.sh/op-stack) library brings several breaking changes:
 
 *   **Transaction estimation**: Methods for estimating gas fees will now leverage `viem` APIs.
 *   **Bridging**: All token bridging actions must be updated to use the `viem` library bridging methods.