update to mainnet

Author: youssefea

docs/base-account/framework-integrations/wagmi/basenames.mdx

@@ -22,7 +22,7 @@ import { createPublicClient, http, toCoinType } from 'viem'
 import { base } from 'viem/chains'
 
 const client = createPublicClient({
-  chain: base,
+  chain: mainnet,
   transport: http(),
 })