you need to add the css&js from link you have from documentation
you need the the full code from : Required CSS & JS
just customize it when you know what you do
and full code from : Render a single maker onto a map
just change location from the code get_field('location'); to the field-name you use
of course you can add css part to template-css and outsource the js part into a file and use wp_register_script and wp_enqueue_script to include it.
