diff --git a/README.md b/README.md
index fd0265e..a0e3436 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ npm install nomic-bitcoin
 import { generateDepositAddress } from 'nomic-bitcoin'
 
 let depositInfo = await generateDepositAddress({
-  relayers: ['https://testnet-relayer.nomic.io:8443'],
+  relayers: ['https://relayer.nomic-testnet.mappum.io:8443'],
   channel: 'channel-0', // IBC channel ID on Nomic
   network: 'testnet',
   receiver: 'cosmos1...', // bech32 address of the depositing user
@@ -46,10 +46,15 @@ Bitcoin sent to `bitcoinAddress` before the expiration date will be automaticall
 
 ### QR code
 
-A QR code similar to the below will be returned in base64 and should be shown on users on desktop devices for ease of use with mobile wallets.
+A QR code similar to the below will be returned as a base64 data URL string and should be shown to users on desktop devices for ease of use with mobile wallets.
 
 ![QR code example](https://raw.githubusercontent.com/nomic-io/nomic-bitcoin-js/main/qr-code-styling.png)
 
+The returned data URL can be used as the `src` attribute on `img` elements:
+```jsx
+<img src={qrCodeData} />
+```
+
 
 ### Capacity limit