fix typo for data storage locations (#12609)

Author: gaprl

docs/organization/data-storage-location/index.mdx

@@ -57,7 +57,7 @@ Metadata that lets Sentry identify an organization will be replicated out of the
 
 ### Data Stored in All Locations (US and EU)
 
-Here’s a list of the types of data that will be stored in both data storage location (US and EU).
+Here’s a list of the types of data that will be stored in both data storage locations (US and EU).
 
 - Uptime checks