Separate SAML Docs

Issue gh-10367

Author: jzheaux

docs/modules/ROOT/nav.adoc

@@ -63,6 +63,9 @@
 **** xref:servlet/oauth2/resource-server/multitenancy.adoc[Multitenancy]
 **** xref:servlet/oauth2/resource-server/bearer-tokens.adoc[Bearer Tokens]
 ** xref:servlet/saml2/index.adoc[SAML2]
+*** xref:servlet/saml2/login.adoc[SAML2 Log In]
+*** xref:servlet/saml2/logout.adoc[SAML2 Logout]
+*** xref:servlet/saml2/metadata.adoc[SAML2 Metadata]
 ** xref:servlet/exploits/index.adoc[Protection Against Exploits]
 *** xref:servlet/exploits/csrf.adoc[]
 *** xref:servlet/exploits/headers.adoc[]