how to use schema in our website, i want to use schema on my website. Can you please help me out.

Hello James,
You will need to override the item.php file
getk2.org/documentation/tutorials/174-templating-with-k2-and-the-concepts-of-sub-templates

The available tags can be found here: schema.org/

You can use this solution as a guide (DO NOT USE any PHP code since this is related to another version of K2)
github.com/kricore/Advanced-templating-with-K2/blob/master/default/item.php

thanks

You 're welcome James.