Configure Github Login For Discourse

Start by going over to https://github.com/settings/developers

Then Register a new application under OAuth Apps

After you Register application, you will be taken to the page that provides the Client ID and Client Secret for discourse

Now go to the discourse admin settings at admin/site_settings/category/login and scroll down until you see github client id and github client secret and copy/paste from previous step

Make sure you save and test your settings