[new] Add `CHANGELOG-template.md

CHANGELOG-template.md

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+This project uses Break Versioning (https://www.taoensso.com/break-versioning)
+
+[releases]: https://github.com/taoensso/nippy/releases
+
+# `vX.Y.Z` (yyyy-mm-dd)
+
+> 📦 [Available on Clojars](https://clojars.org/com.taoensso/TODO/versions/X.Y.Z)
+
+This is a non-breaking **feature and maintenance** (pre-)release.
+
+This is a non-breaking **hotfix** release.
+
+Please test carefully and report any unexpected problems, thank you! 🙏
+
+## Changes since `vX.Y.Z`
+
+* ⚠ ️ 79fbf8f [mod] Commit message
+
+## Fixes since `vX.Y.Z`
+
+* 79fbf8f [fix] Commit message
+
+## New since `vX.Y.Z`
+
+* 79fbf8f [new] Commit message
+
+## Other improvements since `vX.Y.Z`
+
+* 79fbf8f [new] Commit message
+
+
+# Earlier releases
+
+See [here][releases] for earlier releases.