# Those two are equivalent

# This :
section:
  a:
    key: value
    key2: value2
  b:
    key: value
    key2: value2

# And this :
section:
  - key: value
    key2: value2
  - key: value
    key2: value2

# Also works without spaces to make it more compact :
section:
- key: value
  key2: value2
- key: value
  key2: value2