Merge pull request rust-lang#2085 from mgrachev/patch-1

Add article about dotenv-linter v3.1.0

Author: nellshamrell

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

@@ -21,6 +21,8 @@ If you find any errors in this week's issue, [please submit a PR](https://github
 
 ### Project/Tooling Updates
 
+* [Dotenv-linter v3.1.0: Overview of key changes](https://dotenv-linter.github.io/#/whats_new/v310)
+
 ### Observations/Thoughts
 * [Behavior inheritance in Rust](https://abadcafe.wordpress.com/2021/01/08/behavior-inheritance-in-rust/)