Update instructions for vs code mcp server

Author: Akshay-Mata

MssqlMcp/NodejsMcpServer/src/samples/vscode_agent_config.json

@@ -1,13 +1,16 @@
 {
-  "mcpServers": {
-    "mssql": {
-      "command": "node",
-      "args": ["Q:/Repos/SQL-AI-samples/MssqlMcp/NodejsMcpServer/dist/index.js"],
-      "env": {
-        "SERVER_NAME": "your-server-name.database.windows.net",
-        "DATABASE_NAME": "your-database-name",
-        "READONLY": "false"
-      }
+    "mcp": {
+        "servers": {
+            "mssql-nodejs": {
+                "type": "stdio",
+                "command": "node",
+                "args": ["q:\\Repos\\SQL-AI-samples\\MssqlMcp\\NodejsMcpServer\\dist\\index.js"],
+                "env": {
+                  "SERVER_NAME": "your-server-name.database.windows.net",
+                  "DATABASE_NAME": "your-database-name",
+                  "READONLY": "false"
+                }
+            }
+        }
     }
-  }
-} 
+}