Getting friends to do promotional votes and comments isn't ok on HN. This is in the FAQ: https://news.ycombinator.com/newsfaq.html. We ban sites and accounts for doing this, so please don't. Also, it's usually obvious to the HN community when this is happening, and they consider it spamming.

We want users to upvote submissions that they personally find intellectually interesting, not because they or their friends have something to promote.

This does look like the community might find it interesting, though, so if you email [email protected] and promise not to do that again, we can help you repost the submission in a way that won't get flagged.