[Cache] Update get-started.mdx (#28397)

* [Cache] Update get-started.mdx

Hello team, 

Can we link the docs on default cached file extensions for examples of static/cacheable assets?

https://developers.cloudflare.com/cache/concepts/default-cache-behavior/#default-cached-file-extensions

Thanks.

* Added space to retrigger build

---------

Co-authored-by: Denise Peña <75506267+dcpena@users.noreply.github.com>

Author: luishcardoso

src/content/docs/cache/get-started.mdx

@@ -11,7 +11,7 @@ head:
 
 import { GlossaryTooltip } from "~/components"
 
-Cloudflare makes customer websites faster by storing a copy of the website's content on the servers of our globally distributed data centers. Content can be either static or dynamic: static content is “cacheable” or eligible for caching, and dynamic content is “uncacheable” or ineligible for caching. The cached copies of content are stored physically closer to users, optimized to be fast, and do not require recomputing.
+Cloudflare makes customer websites faster by storing a copy of the website's content on the servers of our globally distributed data centers. Content can be either static or dynamic: static content is “[cacheable](/cache/concepts/default-cache-behavior/#default-cached-file-extensions)” or eligible for caching, and dynamic content is “uncacheable” or ineligible for caching. The cached copies of content are stored physically closer to users, optimized to be fast, and do not require recomputing. 
 
 Cloudflare caches static content based on the following factors: