Adjust help links

Author: iluuu1994

docs/src/introduction/getting-started.md

@@ -24,8 +24,7 @@ Getting started with a new and complicated project like php-src can be overwhelm
 lots and lots of code, asking questions of somebody with experience can save a lot of time. Luckily, many core
 developers are eager to help. Here are some ways you can get in touch.
 
-- Slack (FIXME: @Roman)
-- Discourse (FIXME: @Roman)
+- [Discord](https://phpc.chat) (`#php-internals` channel)
 - [R11 on StackOverflow](https://chat.stackoverflow.com/rooms/11/php)
 
 ## Prerequisites