Creating releases of git-sizer

1. Create a release tag and push it to GitHub:

   VERSION=1.2.3
   git tag -as v$VERSION
   git push origin v$VERSION
   

2. Build the release for the major platforms:

   make releases VERSION=$VERSION
   

   The output is a bunch of ZIP files written to directory releases/.

3. Go to the releases page.

4. Click on "Draft a new release".

5. Select the tag, add the required information, and upload the zip files.

6. Click "Publish release".