I had this problem from the first day on STEEMIT. I tried to ask questions - for adding space between titles and paragraphs - many times... But no answer.
At the end, I found the answer!
If you don’t know how to add a titles to your post, I wrote an article here.
To have a space between title and text, you need to write a simple code:
At the end would go like this:
Wish you luck.