required to connect indexer service

Author: xiaoch05

docs/relayer/client.md

@@ -15,6 +15,8 @@ Here's a brief overview of the steps to deploy a Relayer:
 
   If you're not using Helix's public service, you'll need to deploy your own Indexer service. This may involve setting up and configuring an Indexer to index and provide on-chain data.
 
+  If you are not connected to the Helix public service, the Helix app will not be able to display your relayer information and will be unable to complete recommendations when users send transactions.
+
 - **Building from Source**
 
   Download the Relayer's source code and compile it according to the instructions in the project's documentation. Typically, this involves installing build tools, dependencies, and running build commands.

docs/relayer/register.md

@@ -145,7 +145,7 @@ You can leverage the decentralized lending feature to achieve two purposes:
 Currently, Helix relayer supports the AAVE lending pool. This feature is only supported for SafeWallet accounts. To use this feature, you need to create a SafeWallet with the same address across different networks and then transfer the tokens to this wallet.
 
 For example, if you want to use the lending feature on Arbitrum, you will need to add configuration information similar to the example below.
-```
+```js
 "rpcnodes": [
     {
         "name": "arbitrum",