multi-line strings

There are 9 (or 63*, depending how you count) different ways to write multi-line strings in YAML.

• Use > most of the time: interior line breaks are stripped out, although you get one at the end:

    key: >
    Your long
    string here.
  

• Use | if you want those linebreaks to be preserved as \n (for instance, embedded markdown with paragraphs):

    key: |
    ### Heading
  
    * Bullet
    * Points
  

• Use >- or |- instead if you don’t want a linebreak appended at the end.

• Use “…” if you need to split lines in the middle of words or want to literally type linebreaks as \n:

   key: "Hello\
   World!\n\nGet on it."