EditorConfig sample file http://editorconfig.org/

.editorconfig

# EditorConfig is awesome: http://EditorConfig.org

# top-most EditorConfig file
root = true

[*]
# use line feed
end_of_line = lf

# ensure file ends with a newline when saving
insert_final_newline = true

# soft tabs
indent_style = space

# number of columns used for each indentation level
indent_size = 4

# remove any whitespace characters preceding newline characters
trim_trailing_whitespace = true

# character set
charset = utf-8