Update release notes, refs #29

Author: adangel

History.md

@@ -3,6 +3,7 @@
 ## External Contributions
 
 *   [#28](https://github.com/pmd/pmd-regression-tester/pull/28): Refactor require statements - [BBG](https://github.com/djydewang)
+*   [#29](https://github.com/pmd/pmd-regression-tester/pull/29): Add 'verify' rake task to verify code quality before committing changes - [BBG](https://github.com/djydewang)
 *   [#30](https://github.com/pmd/pmd-regression-tester/pull/30): Fix diff_cmd in RuleSetBuilder - [BBG](https://github.com/djydewang)
 
 # 1.0.0.beta2 / 2018-07-17