Merge pull request #61 from inkonchain/docs/update-weth-address

docs: update `WETH` contract address

Author: CruzMolina

src/pages/build/ink-contracts.mdx

@@ -11,7 +11,7 @@
 
 | Contract Name    | Contract Address                                                                                                                 |
 | ---------------- | -------------------------------------------------------------------------------------------------------------------------------- |
-| WETH | [0x66D674eb549B4F1336c37a4aaCf590B39AC4515b](https://sepolia-explorer.inkchain.xyz/address/0x66d674eb549b4f1336c37a4aacf590b39ac4515b) |
+| WETH | [0x03956fcdb1ad808efbc34125a5d0c8495c69ea70](https://sepolia-explorer.inkchain.xyz/address/0x03956fcdb1ad808efbc34125a5d0c8495c69ea70) |
 | ...              | ...                                                                                                                              |
 
 ## Utility Contracts