How to include a multi line string in YAML
Put just a pipe character on the first line:
foo: |
Then add the string, indented on the following lines:
foo: |
    bar
    baz
    bletch
    flum
Put just a pipe character on the first line:
foo: |
Then add the string, indented on the following lines:
foo: |
    bar
    baz
    bletch
    flum