[enterprise-3.11] Correct a annotation for overriding existing cookie name

dev_guide/routes.adoc

@@ -288,22 +288,20 @@ router which endpoint is handling the session, ensuring that client requests use
 the cookie so that they are routed to the same pod.
 
 You can set a cookie name to overwrite the default, auto-generated one for the
-route. This allows the application receiving route traffic to know the cookie
-name. By deleting the cookie it can force the next request to re-choose an
+route. By deleting the cookie it can force the next request to re-choose an
 endpoint. So, if a server was overloaded it tries to remove the requests from the
 client and redistribute them.
 
 . Annotate the route with the desired cookie name:
 +
 ----
-$ oc annotate route <route_name> router.openshift.io/<cookie_name>="-<cookie_annotation>"
+$ oc annotate route <route_name> router.openshift.io/cookie_name="<your_cookie_name>"
 ----
 +
-For example, to annotate the cookie name of `my_cookie` to the `my_route` with
-the annotation of `my_cookie_anno`:
+For example, to specify `my_cookie` as your new cookie name:
 +
 ----
-$ oc annotate route my_route router.openshift.io/my_cookie="-my_cookie_anno"
+$ oc annotate route my_route router.openshift.io/cookie_name="my_cookie"
 ----
 
 . Save the cookie, and access the route: