#                     heading level 1
##                    heading level 2
######                heading level 6

blank line            new paragraph
two spaces at eod     force line break

**bold**              bold text
__bold__              also bold text  (but don't embed within a word)

*italics*

***bolditalic***

> text to blockquote
>
> + more paragraphs

> text to blockquote
>
>> with nested blockquote

- bullets            also can prefix with + or *

1. numbered lists

indent 4 spaces (or 1 tab) for code blocks

`inline code`

---                  on a line by itself -> horizontal rule