[skip ci] Update changelog

Author: Anes Benmerzoug

CHANGELOG.md

@@ -2,10 +2,11 @@
 
 ## Unreleased
 
-- Simplified and fixed publishing to PyPI from CI
-  [PR #183](https://github.com/appliedAI-Initiative/pyDVL/pull/183)
 - Simplified and fixed powerset sampling and testing
   [PR #181](https://github.com/appliedAI-Initiative/pyDVL/pull/181)
+- Simplified and fixed publishing to PyPI from CI
+  [PR #183](https://github.com/appliedAI-Initiative/pyDVL/pull/183)
+- Added Pull Request template [PR #185](https://github.com/appliedAI-Initiative/pyDVL/pull/185)
 
 
 ## 0.2.0 - 📚 Better docs