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

Co-authored-by: Jun Lee <[email protected]>

Author: angelampcosta

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

@@ -95,7 +95,7 @@ In the **Check if header contains** section, you can add header names and their
 
 To check for the presence of a header without including its actual value, use the **Check presence of** option.
 
-Currently, you can only exclude the `Origin` header. The `Origin` header is always included unless explicitly excluded. Including the [Origin header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Origin) in the Cache Key is important to enforce [CORS](https://developer.mozilla.org/en-US/docs/Glossary/CORS). Additionally, you cannot include the following headers:
+Currently, you can only exclude the `Origin` header. The `Origin` header is always included unless explicitly excluded. Including the [Origin header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Origin) in the Cache Key is important to enforce [CORS](https://developer.mozilla.org/en-US/docs/Glossary/CORS).
 
 Additionally, you cannot include the following headers: