How do you add services to your profile?

You'll see the Services menu option under the top right menu in the account - click into that to get into the list of services you've published:

Post up a service and enter in details including the title, lead paragraph, tags, benefits, and long form description:

Once you publish the service, it will show up on your profile - see those green boxes above the project listing:

And when you click into the service, you'll see the details: