Adjusted PULL_REQUEST_TEMPLATE.md

Author: Vitaliy Boyko

.github/PULL_REQUEST_TEMPLATE.md

@@ -31,4 +31,5 @@
 **Contribution checklist** (*)
  - [ ] Pull request has a meaningful description of its purpose
  - [ ] All commits are accompanied by meaningful commit messages
-
+ - [ ] All new or changed code is covered with integration/functional tests (if applicable)
+ - [ ] All automated tests passed successfully (all builds are green)