Fix typo in reactive CSRF docs

Author: eleftherias

docs/manual/src/docs/asciidoc/_includes/reactive/exploits/csrf.adoc

@@ -32,7 +32,7 @@ For example, it might be desirable to persist the `CsrfToken` in a cookie to <<w
 By default the `CookieServerCsrfTokenRepository` will write to a cookie named `XSRF-TOKEN` and read it from a header named `X-XSRF-TOKEN` or the HTTP parameter `_csrf`.
 These defaults come from https://docs.angularjs.org/api/ng/service/$http#cross-site-request-forgery-xsrf-protection[AngularJS]
 
-You can configure `CookieCsrfTokenRepository` in Java Configuration using:
+You can configure `CookieServerCsrfTokenRepository` in Java Configuration using:
 
 .Store CSRF Token in a Cookie
 ====