Add link to this-week-in-rust.org in the description

Author: briankung

draft/DRAFT_TEMPLATE

@@ -9,7 +9,7 @@ This is a weekly summary of its progress and community.
 Want something mentioned? Tag us at [@ThisWeekInRust](https://twitter.com/ThisWeekInRust) on Twitter or [@ThisWeekinRust](https://mastodon.social/@thisweekinrust) on mastodon.social, or [send us a pull request](https://github.com/rust-lang/this-week-in-rust).
 Want to get involved? [We love contributions](https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md).
 
-*This Week in Rust* is openly developed [on GitHub](https://github.com/rust-lang/this-week-in-rust).
+*This Week in Rust* is openly developed [on GitHub](https://github.com/rust-lang/this-week-in-rust) and archives can be viewed at [this-week-in-rust.org](https://this-week-in-rust.org/).
 If you find any errors in this week's issue, [please submit a PR](https://github.com/rust-lang/this-week-in-rust/pulls).
 
 ## Updates from Rust Community