I cannot find a specific markdown command to simply indent paragraphs. The closest I could find was to indent sub items in lists, shown below. I have however 'cheated' my way round this limitation, as you can see with this paragraph. All I did was to add five times before the text.
- First ordered list item
- Another item
Unordered sub-list. - Actual numbers don't matter, just that it's a number
⋅⋅1. Ordered sub-list - And another item.
That is a great tip, best tip I have seen since the one @suesa did about the five sub or sup To tiny downdrop or push up text on a line.