CONTRIBUTING.md in pundit-2.3.1 vs CONTRIBUTING.md in pundit-2.4.0

@@ -18,13 +18,14 @@
 - **Add tests!** Your patch won't be accepted if it doesn't have tests.
 
 - **Document any change in behaviour**. Make sure the README and any other
   relevant documentation are kept up-to-date.
 
-- **Create topic branches**. Please don't ask us to pull from your master branch.
+- **Create topic branches**. Please don't ask us to pull from your main branch.
 
 - **One pull request per feature**. If you want to do more than one thing, send
   multiple pull requests.
 
 - **Send coherent history**. Make sure each individual commit in your pull
   request is meaningful. If you had to make multiple intermediate commits while
   developing, please squash them before sending them to us.
+- **Update the CHANGELOG.** Don't forget to add your new changes to the CHANGELOG.