Add note about --no-server-header limitations when using WebSockets…

… implementations (#1575)

* docs: added limitation about Websockets

* docs: added limitation about Websockets

* Update docs/settings.md

adopted change suggested.

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>

* docs: moved websocket limitation

as per suggestion, moved the limitation to --no-server-header area

* Update docs/settings.md

Co-authored-by: Irfanuddin <irfanuddin@knowledgelens.com>
Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>

docs/settings.md

@@ -82,6 +82,9 @@ connecting IPs in the `forwarded-allow-ips` configuration.
 * `--server-header` / `--no-server-header` - Enable/Disable default `Server` header.
 * `--date-header` / `--no-date-header` - Enable/Disable default `Date` header.
 
+!!! note
+    The `--no-server-header` flag doesn't have effect on the WebSockets implementations.
+
 ## HTTPS
 
 * `--ssl-keyfile <path>` - SSL key file