You’ll find this post in your _posts directory.

To add new posts, simply add a file in the _posts directory that follows the convention YYYY-MM-DD-name-of-post.md and includes the necessary front matter. Take a look at the source for this post to get an idea about how it works.

def print_hi(name)
  puts "Hi, #{name}"
end
print_hi('Tom')
#=> prints 'Hi, Tom' to STDOUT.