Update multiple files

- Dev tools: razor, wallet connect
- PoS: minor fixes

Author: hsutaiyu

docs/pos/concepts/transactions/meta-transactions.md

@@ -95,11 +95,11 @@ For any action that requires blockchain interaction,
     Steps:
 
     1. Let's register our contracts to Biconomy dashboard
-       1. Visit [Biconomy's offical docs](https://docs.biconomy.io/dashboard)
-       2. Navigate and login to the Dashboard
-       3. Select `Polygon Mumbai` when registering your dapp
-    2. Copy the`API key` to use for you dapp's frontend
-    3. And Add function `executeMetaTransaction` in Manage-Api and make sure to enable meta-tx. (Check 'native-metatx' option)
+       1. Visit [Biconomy's offical docs](https://docs.biconomy.io/dashboard).
+       2. Navigate and login to the Dashboard.
+       3. Select **Polygon Amoy Testnet** when registering your dApp.
+    2. Copy the API key to use for you dApp's frontend.
+    3. And add function `executeMetaTransaction` in **Manage-Api** and make sure to enable meta-tx (Check **native-metatx** option).
 
   - If you'd like to use your own custom API that sends signed transactions on the blockchain, you can refer to the server code here: [https://github.com/angelagilhotra/ETHOnline-Workshop/tree/master/2-network-agnostic-transfer](https://github.com/angelagilhotra/ETHOnline-Workshop/tree/master/2-network-agnostic-transfer)
 

docs/tools/oracles/razor.md

@@ -8,6 +8,6 @@ The core of Razor Network is a set of smart contracts that can run on any Ethere
 
 ## Usage
 
-This oracle network is currently running on the Polygon Mumbai testnet. To get started with connecting to the data feed, check out this **[tutorial](https://docs.razor.network/)**.
+This oracle network is currently running on the Polygon mainnet and testnet. To get started with connecting to the data feed, check out this **[tutorial](https://docs.razor.network/)**.
 
 The Razor Network can be explored using [Razorscan](https://razorscan.io/).

docs/tools/wallets/walletconnect.md

@@ -26,21 +26,21 @@ import Web3 from "web3"
 import Matic from "maticjs"
 ```
 
-Next, set up Polygon and Ropsten provider via WalletConnect’s object:
+Next, set up Polygon and Sepolia provider via WalletConnect’s object:
 
 ```javascript
 const maticProvider = new WalletConnectProvider(
   {
-    host: `https://rpc-mumbai.matic.today`,
+    host: `https://rpc-amoy.polygon.technology`,
     callbacks: {
       onConnect: console.log('connected'),
       onDisconnect: console.log('disconnected!')
     }
   }
 )
 
-const ropstenProvider = new WalletConnectProvider({
-  host: `https://ropsten.infura.io/v3/70645f042c3a409599c60f96f6dd9fbc`,
+const sepoliaProvider = new WalletConnectProvider({
+  host: `https://ethereum-sepolia-rpc.publicnode.com`,
   callbacks: {
     onConnect: console.log('connected'),
     onDisconnect: console.log('disconnected')
@@ -52,7 +52,7 @@ We created the above two provider objects to instantiate our Web3 object with:
 
 ```js
 const maticWeb3 = new Web3(maticProvider)
-const ropstenWeb3 = new Web3(ropstenProvider)
+const sepoliaWeb3 = new Web3(sepoliaProvider)
 ```
 
 ## Instantiating contracts