Update pages/ipam/reference-content/understanding-ip-billing.mdx

Co-authored-by: Jessica <[email protected]>

Author: RoRoJ

pages/ipam/reference-content/understanding-ip-billing.mdx

@@ -13,7 +13,7 @@ categories:
   - network
 ---
 
-This document aims to help you understanding how Scaleway bills **public** and **private** IP addresses.
+This document aims to help you understand how Scaleway bills **public** and **private** IP addresses.
 
 ## Public IP addresses - flexible IPs