Adds Alt-Svc to removed respons headers

Author: angelampcosta

src/content/docs/fundamentals/reference/http-headers.mdx

@@ -160,6 +160,7 @@ Cloudflare passes all HTTP headers in the response from the origin server back t
 - `X-Accel-Charset`
 - `X-Accel-Limit-Rate`
 - `X-Accel-Redirect`
+- `Alt-Svc`
 
 ### Added response headers