Merge branch 'docs-saml-providers' into 'master'

Remove unsupported SAML providers

See merge request gitlab-org/gitlab!27135

doc/user/group/saml_sso/index.md

@@ -190,12 +190,8 @@ NOTE: **Note:** GitLab is unable to provide support for IdPs that are not listed
 |----------|---------------|
 | ADFS (Active Directory Federation Services) | [Create a Relying Party Trust](https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/operations/create-a-relying-party-trust) |
 | Azure | [Configuring single sign-on to applications](https://docs.microsoft.com/en-us/azure/active-directory/manage-apps/configure-single-sign-on-non-gallery-applications) |
-| Auth0 | [Auth0 as Identity Provider](https://auth0.com/docs/protocols/saml/saml-idp-generic) |
-| G Suite | [Set up your own custom SAML application](https://support.google.com/a/answer/6087519?hl=en) |
-| JumpCloud | [Single Sign On (SSO) with GitLab](https://support.jumpcloud.com/support/s/article/single-sign-on-sso-with-gitlab-2019-08-21-10-36-47) |
 | Okta | [Setting up a SAML application in Okta](https://developer.okta.com/docs/guides/saml-application-setup/overview/) |
 | OneLogin | [Use the OneLogin SAML Test Connector](https://onelogin.service-now.com/support?id=kb_article&sys_id=93f95543db109700d5505eea4b96198f) |
-| Ping One for Enterprise | [Add and configure a new SAML application](https://support.pingidentity.com/s/document-item?bundleId=pingone&topicId=xsh1564020480660-1.html) |
 
 When [configuring your identify provider](#configuring-your-identity-provider), please consider the notes below for specific providers to help avoid common issues and as a guide for terminology used.
 
@@ -360,6 +356,13 @@ This can be prevented by configuring the [NameID](#nameid) to return a consisten
 
 Not a problem, the SAML standard means that a wide range of identity providers will work with GitLab. Unfortunately we aren't familiar with all of them so can only offer support configuring the [listed providers](#providers).
 
+Your identity provider may also have relevant documentation. It may be generic SAML documentation, or specifically targeted for GitLab. Examples:
+
+- [Auth0](https://auth0.com/docs/protocols/saml/saml-idp-generic)
+- [G Suite](https://support.google.com/a/answer/6087519?hl=en)
+- [JumpCloud](https://support.jumpcloud.com/support/s/article/single-sign-on-sso-with-gitlab-2019-08-21-10-36-47)
+- [OneLogin](https://onelogin.service-now.com/support?id=kb_article&sys_id=93f95543db109700d5505eea4b96198f).
+
 ### I need additional information to configure my identity provider
 
 Many SAML terms can vary between providers. It is possible that the information you are looking for is listed under another name.