I found two good links on how to make a post...the only thing missing in them, is that now you can add photos by clicking on the words 'selecting them' in ---> "Insert images by dragging & dropping, pasting from the clipboard, or by selecting them."

It is right at the bottom of the main text box, and will open your photos on your computer.

But here are the two posts;
https://steemit.com/steemit/@beanz/steemit-posting-tutorial

https://steemit.com/help/@allyo.stories/how-to-write-in-bold-italics-and-more