Put release date in the changelog

DocOtak · DocOtak · commit bc2b8a1ccbec · 2022-09-09T19:56:08.000Z
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -1,7 +1,7 @@
 Changelog
 =========
 
-v0.3.0 - Unreleased
+v0.3.0 - 2022-08-09
 -------------------
 This release focused on supporting Pint quantities.
 
