Any line beginning with # will become a heading. Leave a blank line between headings and paragraphs. Lines with out a blank line between them will be joined.
Font can be Italic or Bold.
Code can be highlighted with backticks.
Or you can use three backticks to make a code block that will be unformatted text.
Links look like this GitHub Help. Images are similar to links, with a exclamation in front and alt text in the square brackets:
List:
- dog
- cat
- you can use a dash, asterisk, or plus sign.
Numbered list:
- one.
- two.
- the actual numbers don't matter.
Block quote. Useful for formatting quotes, asides, or warnings.
A horizontal divide is just some dashes: