Cooking steak on stove top for the first time following Gordon Ramsey's recipe. Any additional tips or maybe some ideas for a side dish?

I've never cooked steak before, especially on a stove top. I'll be following this recipe https://youtu.be/AmC9SmCBUj4

is there anything you would change to this or add? Also what side dishes would go good with this? I'm cooking for four people.

bon appetit