updated link Subnet-EVM API (#1588)

Author: navillanueva

plugin/evm/service.md

@@ -3,7 +3,7 @@ title: Subnet-EVM API
 ---
 
 [Subnet-EVM](https://github.com/ava-labs/subnet-evm) APIs are identical to
-[Coreth](/docs/api-reference/c-chain/api) C-Chain APIs, except Avalanche Specific APIs
+[Coreth](https://build.avax.network/docs/api-reference/c-chain/api) C-Chain APIs, except Avalanche Specific APIs
 starting with `avax`. Subnet-EVM also supports standard Ethereum APIs as well. For more
 information about Coreth APIs see [GitHub](https://github.com/ava-labs/coreth).