add a note about running make before you submit

AWinterman · AWinterman · commit c0f02fd5e11f · 2019-01-01T22:03:29.000-08:00
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
@@ -49,6 +49,8 @@ changes to your submission during the review process.
 #### Before submitting
 
 - Test your change thoroughly
+- you can run `make bootstrap && make` to ensure that the continuous integration
+  build will succeed
 
 
 # Code of Conduct
