End users: add Enix testimonial (#297)

Signed-off-by: Floor Drees <[email protected]>

Author: FloorD

content/end_users/enix.md

@@ -0,0 +1,14 @@
+---
+title: Enix
+image: logo/enix.svg
+homepage: https://enix.io/
+weight: 9
+---
+
+> _At Enix, we've been using CloudNativePG since its early versions in 2022. 
+It's the most comprehensive and relevant operator for deploying PostgreSQL 
+databases within Kubernetes clusters. We use it in production on the IT 
+platforms we manage for our clients, where high availability and scalability 
+are critical requirements._ 
+\
+— Romain Degez, Managing Partner at Enix France