doc GitHub service hooks
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a6d4dfa..76041f6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -33,6 +33,7 @@
* Remember to provide *tests* for all submited changes
* When bugfixing: add test that will isolate bug *before* applying change that fixes it
* Verify that you follow [Thrift Coding Standards](/coding_standards) (you can run 'make style', which ensures proper format for some languages)
+ * Verify that your change works on other platforms by adding a GitHub service hook to [Travis CI](http://docs.travis-ci.com/user/getting-started/#Step-one%3A-Sign-in) and [AppVeyor](http://www.appveyor.com/docs)
1. Commit and push changes to your branch (please use issue name and description as commit title, e.g. THRIFT-9999 make it perfect)
1. Issue a pull request with the jira ticket number you are working on in it's name