How to add Structured data for rich snippets

JReviews adds Structured data markup so Google can use that data to index your content better and present it more prominently in search results. Here is an example of Google search results with breadcrumbs and rating rich snippets:

The code required for this is included in JReviews by default, but keep in mind that Google doesn't automatically include rich snippets in search results for every site just because the site contains the required code, it considers other factors like site popularity as well.