docs: fix more references to Discord channels (#5585)

README.md

@@ -77,9 +77,9 @@ To help you get your feet wet and get you familiar with our contribution process
 
 We have a few channels for contact:
 
-- [Discord](https://discord.gg/docusaurus) with two text channels:
-  - `#docusaurus-users` for those using Docusaurus.
-  - `#docusaurus-dev` for those wanting to contribute to the Docusaurus core.
+- [Discord](https://discord.gg/docusaurus):
+  - `#general` for those using Docusaurus.
+  - `#contributors` for those wanting to contribute to the Docusaurus core.
 - [@docusaurus](https://twitter.com/docusaurus) on Twitter
 - [GitHub Issues](https://github.com/facebook/docusaurus/issues)
 

admin/publish.md

@@ -207,7 +207,7 @@ Create a separate branch/PR and run `yarn examples:generate`
 
 ### 9. Notify people about new release (optional but desirable)
 
-After new release, it is cool to notify our users about this in the Discord chat (`docusaurus-users` channel) and write summaries on Twitter using the following templates.
+After new release, it is cool to notify our users about this in the Discord chat (`#announcements` channel) and write summaries on Twitter using the following templates.
 
 For Discord:
 

website/docs/migration/migration-overview.md

@@ -94,7 +94,7 @@ The [manual migration guide](./migration-manual.md) will give you all the manual
 
 ## Support {#support}
 
-For any questions, you can ask in the [`#docusaurus-1-to-2-migration` Discord channel](https://discordapp.com/invite/kYaNd6V).
+For any questions, you can ask in the [`#migration-v1-to-v2` Discord channel](https://discord.gg/C3P6CxMMxY).
 
 Feel free to tag [@slorber](https://github.com/slorber) in any migration PRs if you would like us to have a look.