Remove CONTRIBUTING.md info around make changelog (#71)

* chore: Remove unnecessary info about make changelog

* chore: changelog

Author: anth-volk

.github/CONTRIBUTING.md

@@ -1,7 +1,3 @@
 ## Updating data
 
 If your changes present a non-bugfix change to one or more datasets which are cloud-hosted (CPS, ECPS and PUF), then please change both the filename and URL (in both the class definition file and in `storage/upload_completed_datasets.py`. This enables us to store historical versions of datasets separately and reproducibly.
-
-## Updating versioning
-
-Please add a versioning entry to `changelog_entry.yaml` (see previous PRs for examples), then run `make changelog` and commit the results ONCE in this PR.

changelog_entry.yaml

@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    removed:
+    - Unnecessary info in CONTRIBUTING.md