Update README.md

Author: sumitmsft

README.md

@@ -48,22 +48,23 @@ import mssql_python
 
 # Establish a connection
 connection = mssql_python.connect(
-    server='your_server',
-    database='your_database',
-    username='your_username',
+    server='localhost',
+    database='test_db',
+    username='admin',
     password='your_password'
 )
 
 # Execute a query
 cursor = connection.cursor()
-cursor.execute("SELECT * FROM your_table")
+cursor.execute("SELECT * FROM employees")
 rows = cursor.fetchall()
 
 for row in rows:
     print(row)
 
 # Close the connection
 connection.close()
+
 ```
 
 ## Still have questions?