Add OIDC Logout section to navbar

Closes gh-15112

docs/modules/ROOT/nav.adoc

@@ -63,6 +63,7 @@
 *** xref:servlet/oauth2/login/index.adoc[OAuth2 Log In]
 **** xref:servlet/oauth2/login/core.adoc[Core Configuration]
 **** xref:servlet/oauth2/login/advanced.adoc[Advanced Configuration]
+**** xref:servlet/oauth2/login/logout.adoc[OIDC Logout]
 *** xref:servlet/oauth2/client/index.adoc[OAuth2 Client]
 **** xref:servlet/oauth2/client/core.adoc[Core Interfaces and Classes]
 **** xref:servlet/oauth2/client/authorization-grants.adoc[OAuth2 Authorization Grants]
@@ -136,6 +137,7 @@
 *** xref:reactive/oauth2/login/index.adoc[OAuth2 Log In]
 **** xref:reactive/oauth2/login/core.adoc[Core Configuration]
 **** xref:reactive/oauth2/login/advanced.adoc[Advanced Configuration]
+**** xref:reactive/oauth2/login/logout.adoc[OIDC Logout]
 *** xref:reactive/oauth2/client/index.adoc[OAuth2 Client]
 **** xref:reactive/oauth2/client/core.adoc[Core Interfaces and Classes]
 **** xref:reactive/oauth2/client/authorization-grants.adoc[OAuth2 Authorization Grants]