[Cache] Fix typos (#18080)

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Co-authored-by: Pedro Sousa <[email protected]>

Author: cf-scott

src/content/docs/cache/how-to/cache-rules/settings.mdx

@@ -188,7 +188,7 @@ Enterprise customers have these additional options for custom cache keys:
   * `referer`
   * `user-agent`
 
-  To check for a header's presense wihtout including its value, use the **Check presence of** option. You can also choose whether to **Include origin header**.
+  To check for a header's presence without including its value, use the **Check presence of** option. You can also choose whether to **Include origin header**.
 * In the **Cookie** section, you can include cookie names and their values, and check for the presence of another cookie.
 * In the **Host** section, you can select **Use original host** and **Resolved host**. In the **User** section, you can select **Device type**, **Country**, and **Language**.