updates

Author: vrushalipanchal

docs/xdcchain/developers/usdc-quickstart.md

@@ -202,8 +202,6 @@ Explorer: https://testnet.xdcscan.com/tx/0xabc123...def456
 
 ## Learn More
 
-Explore the full Circle USDC integration guide in the [Circle Developer Docs](https://developers.circle.com/docs/usdc).
+Explore the full Circle USDC integration guide in the [Circle Developer Docs](https://developers.circle.com).
 
-```
 
----

mkdocs.yml

@@ -66,7 +66,7 @@ nav:
     - XDC Ecosystem: https://xinfin.org/ecosystem-dapps
     - Developers:
         - Quick Guide: ./xdcchain/developers/quick-guide.md
-        - USDC Quickstart: ./xdcchain/developers/usdc-quickstart.md
+        - USDC Quickstart: ./xdcchain/developers/usdc-quickstart
         - Dev-Tools: https://xinfin.org/quick-tools-guide
         - RPC Endpoints:
             - RPC: ./xdcchain/developers/rpc.md/