How to post releases on github?

Question

git

I really like how Yii releases are laid out - there are no extra files, only the most necessary ones. How do they do it?
Here is an example to make it clear:
habrastorage.org/files/398/277/232/3982772327e3422... - file structure on github, a lot of unnecessary stuff.
habrastorage.org/files/9d9/258/fbe/9d9258fbe1a44e4... - the file structure in the downloaded release file, only what you need, nothing more, there are no .gitignore, extra directories, etc.
How can I make a release from the current repository on github, but not include files that are superfluous?

Answer 1

Everything turned out to be insanely simple. We create a release from github and simply attach the necessary archives there without extra files (without any .gitignore there, extra folders, that's all).

Answer 2

.gitignore
git-scm.com/docs/gitignore