Update adding_lints.md

oli-obk · web-flow · commit 3b0185be45e5 · 2019-04-16T15:16:08.000+02:00
diff --git a/doc/adding_lints.md b/doc/adding_lints.md
@@ -394,6 +394,7 @@ Before submitting your PR make sure you followed all of the basic requirements:
 - [ ] `cargo test` passes locally
 - [ ] Executed `util/dev update_lints`
 - [ ] Added lint documentation
+- [ ] Run `cargo fmt`
 
 ### Cheatsheet
 
