docs: update contributing doc

Signed-off-by: Steve Kuznetsov <[email protected]>

Author: stevekuznetsov

CONTRIBUTING.md

@@ -1,16 +1,15 @@
 # Contributing to `openshift/release`
 
-[Contributing documentation][openshift-release-contributing] is served (together
-with other documentation related to CI) on [steps.ci.openshift.org][steps].
-It is maintained in the [ci-tools][ci-tools-webreg] repository.
+Contributing documentation is served (together
+with other documentation related to CI) on [docs.ci.openshift.org][docs].
+It is maintained in the [`ci-docs`][ci-docs] repository.
 
 ## Useful shortcuts
 
-- [Pull Requests to openshift/release][orc-reviews]
-- [Adding CI Configuration for New Repositories][orc-newrepos]
+- [Pull Requests to `openshift/release`][contrib]
+- [Adding CI Configuration for New Repositories][onboard]
 
-[openshift-release-contributing]: https://steps.ci.openshift.org/help/release
-[orc-reviews]: https://steps.ci.openshift.org/help/release#reviews
-[orc-newrepos]: https://steps.ci.openshift.org/help/release#new-repos
-[ci-tools-webreg]: https://github.com/openshift/ci-tools/blob/master/pkg/webreg
-[steps]: https://steps.ci.openshift.org/
+[contrib]: https://docs.ci.openshift.org/docs/how-tos/contributing-openshift-release/
+[onboard]: https://docs.ci.openshift.org/docs/how-tos/onboarding-a-new-component/
+[ci-docs]: https://github.com/openshift/ci-docs
+[docs]: https://docs.ci.openshift.org/