[APO] Update page-rule-integration.mdx (#17943)

Author: nenizera

src/content/docs/automatic-platform-optimization/reference/page-rule-integration.mdx

@@ -6,7 +6,7 @@ sidebar:
 
 ---
 
-The following Page Rules can control APO. Any changes to Caching page rules require purging the cache for the changes to take effect.
+The following Page Rules can control APO. Any changes to caching via Page Rules require purging the cache for the changes to take effect.
 
 :::caution