Here's the results.

Why YSK: In order to improve readability on this site and inform users that these features exist

Note: not supported by every app

^Superscript _Subscript Italic Italic Bold Bold

Heading 1

Heading 2

Heading 1 alt

Heading 2 alt

Blockquote

List

• List
• List
• List

List alt

• List
• List
• List

Numbered List

1. One
2. Two
3. Three

Numbered List alt

1. One
2. Two
3. Three

Horizontal Rule

Horizontal Rule alt

    
# code block
print '3 backticks around' 

  

        # code block
    print 'indent 4 spaces before'