Update release notes.

appveyor.yml

@@ -68,7 +68,12 @@ deploy:
     artifact: /.*\.zip/,sha256.txt
     description: |
       **Release Notes**
-      - Fix help info output. (#65)
+      - Support PAX headers in tar files. (#68)
+      - Refuse to install to root directories to avoid problems.
+      - Allow spaces in distro names when creating shortcuts. (#73)
+      - Handle invalid v2 symlinks (without proper reparse point info) correctly.
+      - Ignore unsupported files when exporting. (#75)
+      - Improve file type output for warnings of unsupported files.
     auth_token:
       secure: 26bYTa3iIxBxle/n6T9sou88hpnz7mK5HoXqSPECwyu7LVI0F28Fl3/Z+T1Y/2Kj
     on: