Welcome to Steemit, Hive account@lifetech360! This is a fantastic introduction post! What you are setting out to do with the tech tips is a great idea. Don't forget that you can and should cross-post everything between the platforms, so you get maximum exposure. Hive account@jerrybanfield is a real pro at this, and I highly recommend checking out his many tutorial videos and blog articles that talk about what he does, and how he does it. You have the potential to be wildly successful with your idea, so go for it!
I don't think you can change the font in Markdown. Here's a tutorial I just found. I have not had a chance to go through it yet, but it was on streemian.com, so it should be good. I'm going to get to it later today.
https://www.markdowntutorial.com/

Also, you might want to spell out both krypto and crypto when creating tags, etc. since both spellings are used worldwide. You probably know better than I whether search engines would detect the letter difference, and return on both if just one was used since you are the tech pro, so it could be redundant to tag with both. I'd be curious to know your advice on that.
I have upvoted and resteemed this post to help boost your exposure, and help you get started with this great plan of yours. I'm also following you now, too. If you have any questions, don't hesitate to ask. I'll do my best to answer them. Cheers!