Update cache-keys.mdx (#19408)

added more description to host settings specific to UI vs API

Author: chris-martinelli

src/content/docs/cache/how-to/cache-keys.mdx

@@ -119,8 +119,8 @@ Additionally, you cannot include the following headers:
 
 Host determines which host header to include in the Cache Key.
 
-* If `resolved: false`, Cloudflare includes the `Host` header in the HTTP request sent to the origin.
-* If `resolved: true`, Cloudflare includes the `Host` header that was resolved to get the `origin IP` for the request. In this scenario, the `Host` header may be different from the header actually sent if the [Cloudflare Resolve Override](/rules/page-rules/how-to/override-url-or-ip-address/) feature is used.
+* If `Use original host` (`resolved: false` in the API), Cloudflare includes the `Host` header in the HTTP request sent to the origin.
+* If `Resolved host` (`resolved: true` in the API), Cloudflare includes the `Host` header that was resolved to get the `origin IP` for the request. In this scenario, the `Host` header may be different from the header actually sent if the [Cloudflare Resolve Override](/rules/page-rules/how-to/override-url-or-ip-address/) feature is used.
 
 ### Cookie