Google Star Rating

Hey, can someony tell me how to add the 5 Stars in Organic Search?
I installed the plugin starrating but iam not sure if the plugin does it.
Thank you very much.

My Website :

i Mean this :

his is generated by “ markup”, “structured data” or “microdata”.

get started with

it can be achieve easily by a plugin or shortcode with Grav

then test it with

Actually this is supported in the star-ratings plugin: