Use Discord vanity URL (#417)

CONTRIBUTING.md

@@ -20,7 +20,7 @@ Contributions are very welcome. If you think you need help planning your contrib
 
 ### Join our Discord Channel
 
-We have [#docusaurus-dev](https://discord.gg/ZQrGEVj) to discuss all things Docusaurus development.
+We have `#docusaurus-dev` on [Discord](https://discord.gg/docusaurus) to discuss all things Docusaurus development.
 
 ### Triaging issues and pull requests
 

README.md

@@ -32,8 +32,9 @@ To help you get your feet wet and get you familiar with our contribution process
 
 We have a few channels for contact:
 
-- Our [#docusaurus-users](https://discord.gg/tq7QK3M) Discord channel for those using Docusaurus.
-- Our [#docusaurus-dev](https://discord.gg/ZQrGEVj) Discord channel for those wanting to contribute to the Docusaurus core.
+- [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.
 - [@docusaurus](https://twitter.com/docusaurus) on Twitter
 - [GitHub Issues](https://github.com/facebook/docusaurus/issues)
 

website/pages/en/help.js

@@ -22,7 +22,7 @@ class Help extends React.Component {
       {
         title: "Discord",
         content:
-          "You can join the conversation on one of our Discord Channels: [#docusaurus-users](https://discord.gg/tq7QK3M) for user help and [#docusaurus-dev](https://discord.gg/ZQrGEVj) for contributing help."
+          "You can join the conversation on [Discord](https://discord.gg/docusaurus) on one of our two text channels: #docusaurus-users for user help and #docusaurus-dev for contributing help."
       },
       {
         title: "Twitter",