[Cache]Update cache-control.mdx (#16745)

* [Cache]Update cache-control.mdx

To avoid confusion as this Cache-Control response directive is actually `stale-while-revalidate`

* Apply suggestions from code review

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Co-authored-by: angelampcosta <92738954+angelampcosta@users.noreply.github.com>

Author: 2 people

src/content/docs/cache/concepts/cache-control.mdx

@@ -76,8 +76,8 @@ Revalidation determines how the cache should behave when a resource expires, and
 
 * `must-revalidate` — Indicates that once the resource is stale, a cache (client or proxy) must not use the response to satisfy subsequent requests without successful validation on the origin server.
 * `proxy-revalidate` — Has the same meaning as the `must-revalidate` response directive except that it does not apply to private client caches.
-* `stale-while-revalidate=seconds` — When present in an HTTP response, indicates caches may serve the response in which it appears after it becomes stale, up to the indicated number of seconds since the resource expired. If [Always Online](/cache/how-to/always-online/) is enabled, then the `stale-while-revalidate` and `stale-if-error` directives are ignored. This directive is not supported when using the Cache API methods `cache.match` or `cache.put`. For more information, refer to the [Worker's documentation for Cache API](/workers/platform/limits/#cache-api-limits).
-* `stale-if-error=seconds` — Indicates that when an error is encountered, a cached stale response may be used to satisfy the request, regardless of other freshness information. To avoid this behavior, include `stale-if-error=0` directive with the object returned from the origin. This directive is not supported when using the Cache API methods `cache.match` or `cache.put`. For more information, refer to the [Worker's documentation for Cache API](/workers/platform/limits/#cache-api-limits).
+* `stale-while-revalidate=<seconds>` — When present in an HTTP response, indicates caches may serve the response in which it appears after it becomes stale, up to the indicated number of seconds since the resource expired. If [Always Online](/cache/how-to/always-online/) is enabled, then the `stale-while-revalidate` and `stale-if-error` directives are ignored. This directive is not supported when using the Cache API methods `cache.match` or `cache.put`. For more information, refer to the [Worker's documentation for Cache API](/workers/platform/limits/#cache-api-limits).
+* `stale-if-error=<seconds>` — Indicates that when an error is encountered, a cached stale response may be used to satisfy the request, regardless of other freshness information. To avoid this behavior, include `stale-if-error=0` directive with the object returned from the origin. This directive is not supported when using the Cache API methods `cache.match` or `cache.put`. For more information, refer to the [Worker's documentation for Cache API](/workers/platform/limits/#cache-api-limits).
 
 The `stale-if-error` directive is ignored if [Always Online](/cache/how-to/always-online/) is enabled or if an explicit in-protocol directive is passed. Examples of explicit in-protocol directives include a `no-store` or `no-cache cache` directive, a `must-revalidate` cache-response-directive, or an applicable `s-maxage` or `proxy-revalidate` cache-response-directive.