Update release notes.

appveyor.yml

@@ -63,12 +63,12 @@ deploy:
     artifact: /.*\.zip/
     description: |
       **Release Notes**
-      - Support creating shortcuts to distros automatically.
-      - Fix the bug that distros can't be copied correctly.
-      - Fix the bug that some error messages can't be displayed correctly.
-      - Fix the bug that strings in the registry are set with wrong lengths.
-      - Display a progress bar during installation.
-      - Update the default value of distro's kernel command line.
+      - Fix some typos of error messages.
+      - Improve the progress bar.
+      - Set registry values to default ones on installation.
+      - Require write access of the source directory only when necessary on copying.
+      - Fix issues related to CRT linking.
+      - Add two new commands: `add-env`, `remove-env`.
     auth_token:
       secure: 26bYTa3iIxBxle/n6T9sou88hpnz7mK5HoXqSPECwyu7LVI0F28Fl3/Z+T1Y/2Kj
     on: