The Wix system is 'massive' so I can only give you the basic steps you will need to fill in the details.
1. create a new page called reviews
2. click the add app button
3. search for Customer Review
4. select our app
5. drag / drop and stretch the app so it feels the page
6. go into your email find some reviews from people and put them in there
7. delete the app from your front page
Here are some videos with more details.
http://writeacustomerreview.com/news/view_article.php?article_id=eedc0a606765bc53bb99f8ab0fabc00d
James
Have reviews on your website in just a few minutes.
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