Update content/integrate/redis-data-integration/when-to-use.md

Co-authored-by: David Dougherty <david.dougherty@redis.com>

Author: andy-stark-redis

content/integrate/redis-data-integration/when-to-use.md

@@ -16,7 +16,7 @@ type: integration
 weight: 5
 ---
 
-RDI is designed to support apps that must use a disk based database as the system of record
+RDI is designed to support apps that must use a disk-based database as the system of record
 but must also be fast and scalable. This is a common requirement for mobile and web
 apps with a rapidly-growing number of users; the performance of the main database is fine at first
 but it will soon struggle to handle the increasing demand without a cache.