Add release notes for v0.0.23

Author: Thunnini

release_notes/v0.0.23.md

@@ -0,0 +1,17 @@
+# Vizor Wallet v0.0.23
+
+This small release refreshes the welcome screen message and improves how macOS
+updates link to release notes.
+
+## Improvements
+
+- Updated the welcome screen tagline to "Private money. By default."
+
+## Fixes
+
+- Fixed macOS updater release notes links so they use the expected URL format.
+
+## Notes
+
+- No wallet balances, accounts, syncing, or transaction behavior are intended
+  to change in this release.