doc: clarify moderation in onboarding.md

This change gives more attention to moderation requirements
collaborators can perform as part of the onboarding process.

PR-URL: #41930
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: benjamingr

onboarding.md

@@ -108,8 +108,15 @@ The project has a venue for real-time discussion:
   * This is a repository to which all members of the `nodejs` GitHub
     organization (not just collaborators on Node.js core) have access. Its
     contents should not be shared externally.
-  * You can find the full moderation policy
-    [here](https://github.com/nodejs/admin/blob/HEAD/Moderation-Policy.md).
+  * Node.js has a moderation team which you should contact when unsure
+    about taking action in the Node.js org.
+  * You can moderate non-collaborator posts yourself. Please
+    report the moderation action taken in accordance to the moderation
+    policy.
+  * You can always refer to the
+    [full moderation policy](https://github.com/nodejs/admin/blob/main/Moderation-Policy.md).
+  * You can contact someone in the
+    [full list of moderation team members](https://github.com/nodejs/moderation#moderation-team-members).
 
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