@tvds794 Hey! Yes, YML format need some kinds of pre-defined indentation (space) and if you have issue in yml format you can check with http://www.yamllint.com. Do you have any specific issue regarding space?
Whitespace is part of YAML’s formatting. Unless otherwise indicated, newlines indicate the end of a field. You structure a YAML document with indentation. The indentation level can be one or more spaces. The specification forbids tabs because tools treat them differently.