Fix mailing list link

Signed-off-by: Ivan Kanakarakis <[email protected]>

contribute.md

@@ -4,14 +4,20 @@ title: Contribute
 permalink: /contribute/
 ---
 
-The Identity Python consists of a set of inter-related but separate software
-projects sharing common funding and governance. Right now, there is a common
-mailing list for discussions about the Identity Python provided by [SUNET](https://sunet.se),
-and a [slack channel](https://identity-python.slack.com)
-that you [can join](https://join.slack.com/t/identity-python/shared_invite/enQtNzEyNjU1NDI1MjUyLTM2MWI5ZGNhMTk1ZThiOTIxNWY2OTY1ODVmMWNjMzUzMTYxNTY5MzE5N2RlYjExZTIyM2MwYjBjZGE4MGVlMTM).
+The Identity Python consists of a set of inter-related but separate software projects sharing common funding and governance.
+IdPy has multiple communication channels;
+- the [IdPy mailing list][idpy-ml] provided by [SUNET](https://sunet.se) (send messages to the list address [[email protected]](mailto:[email protected])),
+- the [IdPy slack workspace][idpy-slack] ([invitation][idpy-slack-invite])
+- and project-specific mailing lists
 
 Participation in all Identity Python projects is govered by our [Note Well](https://github.com/IdentityPython/Governance/blob/master/Note-Well.md).
 
-To report security vulnerabilities, please see our [Security Incident Response](https://github.com/IdentityPython/Governance/blob/master/idpy-incidentresponse.md) process. 
+To report security vulnerabilities, please see our [Security Incident Response](https://github.com/IdentityPython/Governance/blob/master/idpy-incidentresponse.md) process.
 
-To subscribe to the list go to [https://lists.sunet.se/listinfo/idpy-discuss](https://lists.sunet.se/listinfo/idpy-discuss). To send messages to the list address [[email protected]](mailto:[email protected])
+To subscribe to the list go [here][idpy-ml].
+
+
+  [idpy-incident-response]: https://github.com/IdentityPython/Governance/blob/master/idpy-incidentresponse.md
+  [idpy-ml]: https://lists.sunet.se/postorius/lists/idpy-discuss.lists.sunet.se/
+  [idpy-slack]: https://identity-python.slack.com
+  [idpy-slack-invite]: https://join.slack.com/t/identity-python/shared_invite/enQtNzEyNjU1NDI1MjUyLTM2MWI5ZGNhMTk1ZThiOTIxNWY2OTY1ODVmMWNjMzUzMTYxNTY5MzE5N2RlYjExZTIyM2MwYjBjZGE4MGVlMTM

security.md

@@ -85,7 +85,7 @@ GitHub’s guidance on managing these types of vulnerabilities.
 
 
   [idpy-incident-response]: https://github.com/IdentityPython/Governance/blob/master/idpy-incidentresponse.md
-  [idpy-ml]: https://lists.sunet.se/listinfo/idpy-discuss
+  [idpy-ml]: https://lists.sunet.se/postorius/lists/idpy-discuss.lists.sunet.se/
   [idpy-slack]: https://identity-python.slack.com
   [idpy-slack-invite]: https://join.slack.com/t/identity-python/shared_invite/enQtNzEyNjU1NDI1MjUyLTM2MWI5ZGNhMTk1ZThiOTIxNWY2OTY1ODVmMWNjMzUzMTYxNTY5MzE5N2RlYjExZTIyM2MwYjBjZGE4MGVlMTM