CONTRIBUTING.md in beaker-3.25.0 vs CONTRIBUTING.md in beaker-3.26.0

- old
+ new

@@ -41,9 +41,10 @@
   * Run the tests to assure nothing else was accidentally broken, using `rake test`
     * **Bonus**: if possible ensure that `rake test` runs without failures for additional Rubies (versions 1.9.3 and above).
 
 ### Documentation
 
+* Add an entry in the [CHANGELOG.md](CHANGELOG.md). Refer to the CHANGELOG itself for message style/form details.
 * Make sure that you have added documentation using [Yard](http://yardoc.org/) as necessary for any new code introduced.
 * More user friendly documentation will be required for PRs unless exempted. Documentation lives in the [docs/ folder](docs).
 
 ## Making Trivial Changes
 