Update readme.md

Author: danish-mmi

getDistance Method/readme.md

@@ -45,7 +45,7 @@ For detailed understanding, Let’s get started!
 
 Visit the following link for visiting the live demo:
 
-[LIVE DEMO](https://about.mappls.com/api/web-sdk/vector-plugin-example/Distance/mappls-default-getdistance-plugin)
+[LIVE DEMO](https://about.mappls.com/api/web-sdk/vector-plugin-auth2/Distance/mappls-default-getdistance-plugin)
 
 
 ## Implementation