add yelp to company list (#2949)

README.md

@@ -554,6 +554,7 @@ Here are some companies/projects (alphabetical order) using OpenAPI Generator in
 - [unblu inc.](https://www.unblu.com/)
 - [Veamly](https://www.veamly.com/)
 - [Xero](https://www.xero.com/)
+- [Yelp](https://www.yelp.com/)
 - [Zalando](https://www.zalando.com)
 
 ## [5 - Presentations/Videos/Tutorials/Books](#table-of-contents)

website/dynamic/users.yml

@@ -113,6 +113,11 @@
   image: "img/companies/xero.png"
   infoLink: "https://www.xero.com/"
   pinned: false
+-
+  caption: Yelp 
+  image: "img/companies/yelp.png"
+  infoLink: "https://www.yelp.com/"
+  pinned: false
 -
   caption: Zalando
   image: "img/companies/zalando.jpg"