PRs should link to post and do CODES testing

.github/PULL_REQUEST_TEMPLATE.md

@@ -5,6 +5,7 @@
 If this merge represents a feature addition to ROSS, the following items must be completed before the branch will be merged:
 
 - [ ] Document the feature on the blog (See the [Contributing guide](https://github.com/carothersc/ROSS/blob/gh-pages/CONTRIBUTING.md) in the gh-pages branch).
-- [ ] A TravisCI test should be created (and it should pass)
-- [ ] Through the test, coverage should increase
-
+  Include a link to your blog post in the Pull Request.
+- [ ] One or more TravisCI tests should be created (and they should pass)
+- [ ] Through the TravisCI tests, coverage should increase
+- [ ] Test with CODES to ensure everything continues to work