Update GoUsers.md

Change-Id: I296cb01b11c775a8bfa02469c6bb30a2499c7914
GitHub-Last-Rev: 0c75630
GitHub-Pull-Request: #61
Reviewed-on: https://go-review.googlesource.com/c/wiki/+/690455
Reviewed-by: Sean Liao <sean@liao.dev>

Author: marikann

GoUsers.md

@@ -1354,6 +1354,7 @@ Certificate Expiry Monitor Controller monitors the expiration of TLS certificate
   * [Trendyol.com](https://www.trendyol.com) - [github](https://github.com/Trendyol) - Backend APIs
   * [Armut/HomeRun](https://armut.com/) - [github](https://github.com/armutcom) - Backend APIs
   * [BiTaksi](https://www.bitaksi.com) - [github](https://github.com/BiTaksi)
+  * [Hepsiburada.com](https://www.hepsiburada.com) - [github](https://github.com/hepsiburada) - Backend APIs
 ### Ukraine
   * [Agilites](https://agilites.com)
   * [Aura](https://aura.com)