Docs: Improve SSO Settings docs

[mgyongyosi]

What is this feature?
Crosslink required steps to enable Users to login using the same email with different OAuth providers.

Why do we need this feature?

[Add a description of the problem the feature is trying to solve.]

Who is this feature for?

[Add information on what kind of user the feature is for.]

Which issue(s) does this PR fix?:

Fixes #

Special notes for your reviewer:

Please check that:

• It works as expected from a user's perspective.
• If this is a pre-GA feature, it is behind a feature toggle.
• The docs are updated, and if this is a notable improvement, it's added to our What's New doc.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in Azure AD that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in Azure AD that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in GitHub that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in GitHub that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in GitLab that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in GitLab that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in Google that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in Google that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in Keycloak that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in Keycloak that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[github-actions]

🚫 [doc-validator] _{reported by reviewdog 🐶}
The relref shortcode argument '{{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}' has a trailing slash, which can break the resolution.
You can reference an index.md file either by its path or by its containing folder without the ending /.
You can reference an _index.md file only by its containing folder.

Remove the trailing slash to make sure that changing the index type doesn't break the link.

Suggested change

If Users use the same email address in Okta that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication/#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

If Users use the same email address in Okta that they use with other authentication providers (such as Grafana.com), you need to do additional configuration to ensure that the users are matched correctly. Please refer to the [Using the same email address to login with different identity providers]({{< relref "../configure-authentication#using-the-same-email-address-to-login-with-different-identity-providers" >}}) documentation for more information.

[lwandz13]

looks great!