You appear to have two different problems. First, you seem to have some sort of certificate errors. Your stacktrace got clipped at the top in the screenshot, so it's hard to tell exactly what the problem is. I'd recommend actually starting your service to use http while you're getting set up, and then worry about certs later. Second, you seem to have a copy and paste error with your json blob when you were doing the curl. It treated all of the line breaks in the json as different inputs to your cmd window, so the post body you sent was malformed. I don't think it mattered in this case because it failed on the https handshake, but if you had gotten past that step you would've seen a different error. Also, if you're not comfortable with cURL and would prefer a GUI-based way of making the request, I'd recommend getting the POSTman plugin for Chrome.
I'd probably go a step farther and suggest using lambda if you want an easy to use way to get started with the Skills Kit. If that's not the route you want to go down, I second the error with the certificate and the copy paste error. That is actually one that I ran into on my very first day of using the Skills Kit, before lambda was even released. Easiest I've found is to simply put it in a file and pipe that into the curl command instead of trying to do it inline. You should also be able to disable signature checking in your application to prevent the SSL errors while you are testing locally. Thanks, Nick