docs: use vanity URL for Discord

Author: nickserv

docs/contributing.mdx

@@ -43,7 +43,7 @@ Links:
 [bugs]: https://github.com/testing-library/react-testing-library/issues?q=is%3Aissue+is%3Aopen+label%3Abug+sort%3Acreated-desc
 [requests]: https://github.com/testing-library/react-testing-library/issues?q=is%3Aissue+sort%3Areactions-%2B1-desc+label%3Aenhancement+is%3Aopen
 [good-first-issue]: https://github.com/testing-library/react-testing-library/issues?utf8=✓&q=is%3Aissue+is%3Aopen+sort%3Areactions-%2B1-desc+label%3A"good+first+issue"+
-[discord]: https://discord.gg/c6JN9fM
+[discord]: https://discord.gg/testing-library
 [stackoverflow]: https://stackoverflow.com/questions/tagged/react-testing-library
 
 <!-- prettier-ignore-end -->

docusaurus.config.js

@@ -305,7 +305,7 @@ module.exports = {
  },
  {
  label: 'Discord',
- href: 'https://discord.gg/c6JN9fM',
+ href: 'https://discord.gg/testing-library',
  },
  ],
  },

netlify.toml

@@ -30,7 +30,7 @@
 # Shortcut to Discord server invite
 [[redirects]]
  from = "/discord"
- to = "https://discord.gg/c6JN9fM"
+ to = "https://discord.gg/testing-library"
 
 # Support page to help page
 [[redirects]]

src/pages/help.js

@@ -34,7 +34,7 @@ export default function Help(props) {
  title: 'Spectrum',
  },
  {
- content: `Chat on [Discord](https://discord.gg/c6JN9fM)`,
+ content: `Chat on [Discord](https://discord.gg/testing-library)`,
  title: 'Discord',
  },
  {