changelog.txt: Add entry for PR #223

Signed-off-by: Andrew Gunnerson <[email protected]>

Author: chenxiaolong

app/magisk/updates/release/changelog.txt

@@ -4,6 +4,9 @@
 * Update Polish translations (PR: #219, @Twoomatch)
 * Improve English description of `initially paused` preference (PR: #220, @Twoomatch)
 
+Magisk module updater changes:
+* Show changelog for the correct version, excluding unreleased changes (PR: #223, @chenxiaolong)
+
 Documentation changes:
 * README.md: Fix typos (PR: #221, @Twoomatch)