Update Readme and Changelog

Change-Id: I5c7b5e4331fa0590572fee98fd4069b33880cf4a
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 071a1ed..6381817 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@
       - name: Run tests
         run: ./gradlew test --no-daemon
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: korapxmltool-jar
           path: app/build/libs/*.jar