doc: simplified docs, now pointer to org-level docs (#92)

Signed-off-by: Frederic BIDON <fredbi@yahoo.com>

Author: fredbi

.github/CONTRIBUTING.md

@@ -14,15 +14,9 @@
 
 An implementation of JSON Reference for golang.
 
+<!--
 ## Announcements
-
-* **2025-12-19** : new community chat on discord
-  * a new discord community channel is available to be notified of changes and support users
-  * our venerable Slack channel remains open, and will be eventually discontinued on **2026-03-31**
-
-You may join the discord community by clicking the invite link on the discord badge (also above). [![Discord Channel][discord-badge]][discord-url]
-
-Or join our Slack channel: [![Slack Channel][slack-logo]![slack-badge]][slack-url]
+-->
 
 ## Status
 
@@ -74,9 +68,9 @@ on top of which it has been built.
 ## Other documentation
 
 * [All-time contributors](./CONTRIBUTORS.md)
-* [Contributing guidelines](.github/CONTRIBUTING.md)
-* [Maintainers documentation](docs/MAINTAINERS.md)
-* [Code style](docs/STYLE.md)
+* [Contributing guidelines][contributing-doc-site]
+* [Maintainers documentation][maintainers-doc-site]
+* [Code style][style-doc-site]
 
 ## Cutting a new release
 
@@ -125,3 +119,7 @@ Maintainers can cut a new release by either:
 [goversion-url]: https://github.com/go-openapi/jsonreference/blob/master/go.mod
 [top-badge]: https://img.shields.io/github/languages/top/go-openapi/jsonreference
 [commits-badge]: https://img.shields.io/github/commits-since/go-openapi/jsonreference/latest
+<!-- Organization docs -->
+[contributing-doc-site]: https://go-openapi.github.io/doc-site/contributing/contributing/index.html
+[maintainers-doc-site]: https://go-openapi.github.io/doc-site/maintainers/index.html
+[style-doc-site]: https://go-openapi.github.io/doc-site/contributing/style/index.html