message: chore: replace gitter link with github discussions
diff: @@ -94,8 +94,8 @@ module.exports = {
  link: "https://chevrotain.io/performance/"
  },
  {
  - text: "Chat",
  - link: "https://gitter.im/chevrotain-parser/Lobby"
  + text: "Discussions",
  + link: "https://github.com/Chevrotain/chevrotain/discussions"
  }
  ],
  sidebar: {
  