As you do this process do consider reading 13 Reasons Why Blog Ads Suck for Monetizing Your Site (And What to Do Instead. And if you still want to do it, consider having a steady number of visits or google will consider you in violation of their policies and will revoke your adsense account. You can read the quality guidelines to help create better content for your blog. AdSense quality guidelines
So here are the neaty greaty details
- Create the account with Google AdSense
- During the process there will be a blur about some script that needs to be added to the head
- Copy the text from the blur in step 2
- In your git repo, locate
_includes/head/custom.htmland paste the blur as prefered in that file
git commit -m "adding the blur"