Update USERS.md

USERS.md

@@ -4,6 +4,7 @@ As the Gitleaks Community grows, we'd like to keep a list of our users.
 
 Here's a running list of some organizations using Gitleaks[^1]:
 
+1. [GitLab](https://docs.gitlab.com/ee/user/application_security/secret_detection/)
 1. [Gitleaks](https://gitleaks.io)
 1. [GoReleaser](https://goreleaser.com) 
 2. [Trendyol](https://trendyol.com)