I made a small change in the gh-pages branch, add google analytics script.

The main JS script was in the _include folder, and this JS file was included in head.html.

In _config.yml file, I add the Google analytics key.

To fork the version with google analytics, please try this command:

git clone --branch gh-pages https://github.com/yulijia/freshman21.git

Attention: Only gh-pages branch has google analytics and this article.