My GitHub account is http://github.com/neechbear/.

$ curl -sSL  https://api.github.com/repos/jpmens/jo/releases/latest \
  | jq -r ".assets[]|select(.name|test(\".tar.gz\"))|.browser_download_url"
https://github.com/jpmens/jo/releases/download/v1.1/jo-1.1.tar.gz

• https://developer.github.com/v4/
• http://www.starkandwayne.com/blog/how-to-download-the-latest-release-from-github/