N17: Add discussion links

Author: ozkriff

content/posts/newsletter-017/index.md

@@ -1263,12 +1263,9 @@ Want something mentioned in the next newsletter?
 Also, subscribe to [@rust_gamedev on Twitter][@rust_gamedev]
 or [/r/rust_gamedev subreddit][/r/rust_gamedev] if you want to receive fresh news!
 
-<!--
-TODO: Add real links and un-comment once this post is published
 **Discussions of this post**:
-[/r/rust](TODO),
-[twitter](TODO).
--->
+[/r/rust](https://reddit.com/r/rust/comments/kxd8kt/this_month_in_rust_gamedev_17),
+[Twitter](https://twitter.com/rust_gamedev/status/1349805081378611205).
 
 [/r/rust_gamedev]: https://reddit.com/r/rust_gamedev
 [@rust_gamedev]: https://twitter.com/rust_gamedev