CONTRIBUTING.md in codekindly-utils-0.0.9 vs CONTRIBUTING.md in codekindly-utils-0.0.10

@@ -9,9 +9,10 @@
 ## Run tests
 
 To run tests against all supported Ruby versions and all supported major dependency versions:
 
 ```Shell
+./all_rubies bundle
 ./all_rubies appraisal-install
 ./all_rubies appraisal-spec
 ```
 
 ## Submitting changes