PR template: Changes.md is not in the docs directory (#1018)

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,7 +2,7 @@ Thanks for making a pull request to converse.js!
 
 Before submitting your request, please make sure the following conditions are met:
 
-- [ ] Add a changelog entry for your change in `docs/CHANGES.md`
+- [ ] Add a changelog entry for your change in `CHANGES.md`
 - [ ] When adding a configuration variable, please make sure to
       document it in `docs/source/configuration.rst`
 - [ ] Please add a test for your change. Tests can be run in the commandline