Update limits.mdx (#17896)

* Update limits.mdx

Clarity around response headers and body

* Retrigger CI

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Co-authored-by: Kody Jackson <[email protected]>

Author: mbullock1986

src/content/docs/workers/platform/limits.mdx

@@ -50,7 +50,9 @@ Cloudflare Enterprise customers may contact their account team or [Cloudflare Su
 
 ## Response limits
 
-Cloudflare does not enforce response limits, but cache limits for [Cloudflare's CDN are observed](/cache/concepts/default-cache-behavior/). Maximum file size is 512 MB for Free, Pro, and Business customers and 5 GB for Enterprise customers.
+Response headers observe a total limit of 32 KB, but each header is limited to 16 KB.
+
+Cloudflare does not enforce response limits on response body sizes, but cache limits for [our CDN are observed](/cache/concepts/default-cache-behavior/). Maximum file size is 512 MB for Free, Pro, and Business customers and 5 GB for Enterprise customers.
 
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