[Cache] Update cache-keys.mdx (#25300)

* [Cache] Update cache-keys.mdx

Hello team,  can we update this to 10?

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

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

---------

Co-authored-by: angelampcosta <[email protected]>

Author: nenizera

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

@@ -91,7 +91,7 @@ Headers control which headers go into the Cache Key. Similar to Query String, yo
 
 When you include a header, the header value is included in the Cache Key. For example, if an HTTP request contains an HTTP header like `X-Auth-API-key: 12345`, and you include the `X-Auth-API-Key header` in your Cache Key Template, then `12345` appears in the Cache Key.
 
-In the **Check if header contains** section, you can add header names and their values to the cache key. For custom headers, values are optional, but for the following restricted headers, you must include one to three specific values:
+In the **Include headers and selected values** section, you can add header names and their values to the cache key. For custom headers, values are optional, but for the following restricted headers, you must include one to 10 specific values:
 
   * `accept`
   * `accept-charset`