Fix broken links to WebSocket support in Spring Security & Spring Session

src/docs/asciidoc/web/websocket.adoc

@@ -1732,11 +1732,11 @@ the user is already authenticated at the HTTP transport level, and expects that
 the WebSocket or SockJS session contain the authenticated user.
 
 NOTE: Spring Security provides
-https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#websocket[WebSocket sub-protocol authorization]
+https://docs.spring.io/spring-security/reference/servlet/integrations/websocket.html#websocket-authorization[WebSocket sub-protocol authorization]
 that uses a `ChannelInterceptor` to authorize messages based on the user header in them.
-Also, Spring Session provides a
+Also, Spring Session provides
-https://docs.spring.io/spring-session/docs/current/reference/html5/#websocket[WebSocket integration]
+https://docs.spring.io/spring-session/reference/web-socket.html[WebSocket integration]
-that ensures the user HTTP session does not expire when the WebSocket session is still active.
+that ensures the user's HTTP session does not expire while the WebSocket session is still active.