Update src/content/artifact-management/retention-rules.mdx

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: jtaylor-cs

src/content/artifact-management/retention-rules.mdx

@@ -9,7 +9,7 @@ Cloudsmith Retention Rules automate artifact data management for a repository by
 - The number of days (time).
 - A [search query](/artifact-management/search-filter-sort-packages) to filter packages.
 
-Each repository has (1) configurable Retention Rule. This rule runs automatically when a new package is uploaded and synchronized; subsequently, it deletes any packages that do not meet the configured parameters.
+Each repository has one configurable Retention Rule. This rule runs automatically when a new package is uploaded and synchronized; subsequently, it deletes any packages that do not meet the configured parameters.
 
 Retention Rules can be configured for a repository either via the Cloudsmith Web App, the Cloudsmith API, or the Cloudsmith Terraform Provider.