Updated UI repo link

Author: web3gautam

src/implementation/frontend-usage.md

@@ -10,8 +10,7 @@ This front end serves as a reference implementation example and a starting point
 - Run onboarding campaigns such as airdrops  
 - Provide a low-friction user experience with wallet connection, proof generation, claim transactions, and cross-chain settlement
 
-The complete source code is available in the [disposable-ui repository](https://github.com/blockdeep/disposable-ui) for reference and customization.
-
+The complete source code is available in the [Efimero Demo UI repository](https://github.com/blockdeep/efimero-demo-ui) for reference and customization.
 
 ## Integration Notes
 
@@ -27,7 +26,6 @@ This frontend serves as the **user-facing layer** in a three-component ecosystem
 - HTTP API integration with proof generation service
 - Wallet abstraction using Polkadot ecosystem standards
 
-
 ## Prerequisites & Setup
 
 Before using the frontend, ensure the infrastructure is running:
@@ -61,6 +59,7 @@ Once verified, the disposable chain transfers the asset to your connected accoun
 After claiming, you can permanently secure your tokens by transferring them back to Asset Hub. The application exposes a cross-chain function that sends the necessary XCM message to move the asset back into Asset Hub, where it persists beyond the lifecycle of the disposable chain.
 
 ## Common Issues
+
 - **"Account not found"**: Your address isn't in the test dataset (`test/data/test.csv`)
 - **"Already claimed"**: Each account can only claim once
 - **Transaction fails**: Wait for the 10-block cooling period between free transactions