Strings with newlines should be encoded as multiline literals

[tejassharma96]

Strings with newlines should be encoded as multiline literals

[Maxatma]

/// Create `Emitter.Options` with the specified values.
    ///
    /// - parameter canonical:     Set if the output should be in the "canonical" format described in the YAML
    ///                            specification.
    /// - parameter indent:        Set the indentation value.
    /// - parameter width:         Set the preferred line width. -1 means unlimited.
    /// - parameter allowUnicode:  Set if unescaped non-ASCII characters are allowed.
    /// - parameter lineBreak:     Set the preferred line break.
    /// - parameter explicitStart: Explicit document start `---`.
    /// - parameter explicitEnd:   Explicit document end `...`.
    /// - parameter version:       The `%YAML` directive value or nil.
    /// - parameter sortKeys:      Set if emitter should sort keys in lexicographic order.
    /// - parameter sequenceStyle: Set the style for sequences (arrays / lists)
    /// - parameter mappingStyle:  Set the style for mappings (dictionaries)
    public init(canonical: Bool = false, indent: Int = 0, width: Int = 0, allowUnicode: Bool = false,
                lineBreak: Emitter.LineBreak = .ln, version: (major: Int, minor: Int)? = nil,
                sortKeys: Bool = false, sequenceStyle: Node.Sequence.Style = .any,
                mappingStyle: Node.Mapping.Style = .any, newLineScalarStyle: Node.Scalar.Style = .any) {
           

Parameters list comments could be updated to have newLineScalarStyle info 🙂