chore: release v0.1.0

Initial release.

Added:

- Create todo lists versioned by date
- Edit, list todo notes by any date format understood by `date(1)`
- Write custom template programs to generate content for newly created
  notes

CHANGELOG.md

@@ -0,0 +1,15 @@
+# Changelog
+
+This [changelog.md] keeps track of major changes to this program.
+
+## v0.1.0
+
+Initial release.
+
+### Added
+
+- Create todo lists versioned by date
+- Edit, list todo notes by any date format understood by `date(1)`
+- Write custom template programs to generate content for newly created notes
+
+[changelog.md]: https://changelog.md/