Apply suggestions from code review

Co-authored-by: Rowena Jones <[email protected]>

Author: bene2k1

pages/instances/concepts.mdx

@@ -28,8 +28,8 @@ Block volumes provide network-attached storage you can plug in/out of Instances
 
 ## Carrier-grade NAT (CGNAT)
 
-Scaleway used a 1:1 carrier-grade (CGNAT) setup for legacy Instance types. With this architecture, each Instance is assigned a unique NAT IP that directly maps to a unique public IP, unlike standard CGNAT, where multiple users share a single public IP.
-This setup ensured that all outbound and inbound traffic for an Instance is translated between these two addresses, preserving the exclusivity of IP addresses and avoiding certain connectivity issues related to a shared IP setup.
+Scaleway used a 1:1 carrier-grade (CGNAT) setup for legacy Instance types. With this architecture, each Instance was assigned a unique NAT IP that directly mapped to a unique public IP, unlike standard CGNAT, where multiple users share a single public IP.
+This setup ensured that all outbound and inbound traffic for an Instance was translated between these two addresses, preserving the exclusivity of IP addresses and avoiding certain connectivity issues related to a shared IP setup.
 All recent Instance types support routed IPs through [IP mobility](#ip-mobility).
 
 ## Cloud-init