Docs: For Okta Auth for MCP

[TwilightTechie]

We have recently added OKTA auth along with auth0 and keyclock the goal is to add the documentation for OKTA.

Doc section: https://agentgateway.dev/docs/kubernetes/latest/mcp/auth/

• has a Keycloak guide
• needs a similar guide for Okta (and Auth0)

Related dev issue: agentgateway/agentgateway#1335

[TwilightTechie]

Hi Team,
Do we have any standard format or template for adding documentation for the features we work on? Or is the documentation usually handled by whoever tests the feature?
cc: @artberger @howardjohn

[artberger]

Hi @TwilightTechie , thanks for opening this docs issue. You are definitely welcome to open a PR for the docs. We have a similar guide for Keycloak that it could be similar to (I updated the issue description).

Otherwise, I will add it to our 1.3 release list.