Secured Openshift routes should be properly documented

[fedinskiy]

Description

Follow-up to the previous issue[1].

Currently, documentation[2] for secured routes[3] is clearly insufficient.

1. Out of three possible types of secure routes[4], two more advanced (reencrypt and edge) are not described at all.
2. The manual for the third one (passthrough)[2], leads to PR_END_OF_FILE_ERROR during the check

[1] https://github.com/quarkusio/quarkus/issues/33275 [2] https://quarkus.io/guides/deploying-to-openshift#securing-the-route-resource [3] https://github.com/quarkusio/quarkus/pull/31839 [4] https://docs.openshift.com/container-platform/4.12/networking/routes/secured-routes.html?extIdCarryOver=true&sc_cid=701f2000001Css0AAC

Implementation ideas

No response

[quarkus-bot[bot]]

/cc @geoand (openshift), @iocanel (openshift)

[iocanel]

cc @Sgitario