update example

.env.example

@@ -11,7 +11,7 @@ REDIS_URL=redis://redis/0
 # REDIS_URL=localhost
 
 CHAIN_ID=100
-# RPC_URL=https://rpc.xdaichain.com/tornado
+# RPC_URL=https://rpc.gnosischain.com/tornado
 
 # ORACLE_RPC_URL should always point to the mainnet
 # ORACLE_RPC_URL=https://mainnet.infura.io

src/constants/contracts.ts

@@ -6,7 +6,7 @@ export const CONTRACT_NETWORKS: { [chainId in ChainId]: string } = {
 
 export const RPC_LIST: { [chainId in ChainId]: string } = {
   [ChainId.MAINNET]: 'https://api.mycryptoapi.com/eth',
-  [ChainId.XDAI]: 'https://rpc.xdaichain.com/tornado',
+  [ChainId.XDAI]: 'https://rpc.gnosischain.com/tornado',
 };
 
 export const OFF_CHAIN_ORACLE = '0x07D91f5fb9Bf7798734C3f606dB065549F6893bb';