docs: point to organization-wide documentations, added missing godocs (#126)

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

Author: fredbi

.github/CONTRIBUTING.md

@@ -18,7 +18,7 @@ It ships with copies of other software which license terms are recalled below.
 
 The original software was authored on 25-02-2013 by sigu-399 (https://github.com/sigu-399, sigu.399@gmail.com).
 
-github.com/sigh-399/jsonpointer
+github.com/sigu-399/jsonpointer
 ===========================
 
 // SPDX-FileCopyrightText: Copyright 2013 sigu-399 ( https://github.com/sigu-399 )

.github/DCO.md

@@ -16,14 +16,6 @@ An implementation of JSON Pointer for golang, which supports go `struct`.
 
 ## 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]
-
 * **2026-04-15** : added support for trailing "-" for arrays
   * this brings full support of [RFC6901][RFC6901]
   * this is supported for types relying on the reflection-based implemented
@@ -125,9 +117,9 @@ 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
 
@@ -158,9 +150,6 @@ Maintainers can cut a new release by either:
 <!-- Badges: documentation & support -->
 [godoc-badge]: https://pkg.go.dev/badge/github.com/go-openapi/jsonpointer
 [godoc-url]: http://pkg.go.dev/github.com/go-openapi/jsonpointer
-[slack-logo]: https://a.slack-edge.com/e6a93c1/img/icons/favicon-32.png
-[slack-badge]: https://img.shields.io/badge/slack-blue?link=https%3A%2F%2Fgoswagger.slack.com%2Farchives%2FC04R30YM
-[slack-url]: https://goswagger.slack.com/archives/C04R30YMU
 [discord-badge]: https://img.shields.io/discord/1446918742398341256?logo=discord&label=discord&color=blue
 [discord-url]: https://discord.gg/FfnFYaC3k5
 
@@ -173,3 +162,7 @@ Maintainers can cut a new release by either:
 [top-badge]: https://img.shields.io/github/languages/top/go-openapi/jsonpointer
 [commits-badge]: https://img.shields.io/github/commits-since/go-openapi/jsonpointer/latest
 [RFC6901]: https://www.rfc-editor.org/rfc/rfc6901
+<!-- 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