Merge pull request rust-lang#2091 from JockeTF/rocket-release-candidate

Add Rocket v0.5 Release Candidate

Author: nellshamrell

draft/2021-06-09-this-week-in-rust.md

@@ -20,6 +20,7 @@ If you find any errors in this week's issue, [please submit a PR](https://github
 ### Newsletters
 
 ### Project/Tooling Updates
+* [Rocket v0.5 Release Candidate](https://rocket.rs/v0.5-rc/news/2021-06-09-version-0.5-rc.1/)
 * [This Week In TensorBase 6](https://tensorbase.io/thisweek/2021-06-09-tw_6/)
 * [Dotenv-linter v3.1.0: Overview of key changes](https://dotenv-linter.github.io/#/whats_new/v310)