Follow-up from "Add the `blob:` search filter to search by Git object-id"

The following discussion from !42752 (merged) should be addressed:

• @axil started a discussion: (+1 comment)

  Is there an example we can add below like the rest of the filters?

  On the other hand, I realize that we won't be able to provide a link that works until this gets deployed 🤔 Maybe resolve in a new issue and add the example after the deployment on .com.