Update changelog

Author: willingc

CHANGELOG.md

@@ -7,5 +7,10 @@
 * Enh: Use `hatch_vcs` for dynamic versioning (@lwasser, #82)
 * Fix: migrate to pytest for tests and setup hatch scripts (#89, @lwasser)
 
-## v.0.2
-lots of stuff here... :) none of it documented
+## [v0.15](https://github.com/pyOpenSci/pyosMeta/releases/tag/v0.15)
+
+2023-12-20 - This release was tagged in git and GitHub but not released to PyPI.
+
+## [v.0.2](https://pypi.org/project/pyosmeta/0.2)
+
+2023-08-17 - Initial release to PyPI.