message: Add description to readme
diff: @@ -64,6 +64,8 @@ TextFieldComponent | func, string | undefined | Component that should replace th
  InputAdornmentProps | object | {} | Props to pass to keyboard input adornment
  inputAdornmentPosition | enum 'start', 'end' | 'end' | Specifies position of keyboard adornment
  pickerRef | func | undefined | Ref to the picker component
  +onOpen | func | undefined | On open callback
  +onClose | func | undefined | On close callback
  #### Timepicker
  Prop | Type | Default | Definition
  @@ -87,6 +89,8 @@ TextFieldComponent | func, string | undefined | Component that should replace th
  InputAdornmentProps | object | {} | Props to pass to keyboard input adornment
  inputAdornmentPosition | enum 'start', 'end' | 'end' | Specifies position of keyboard adornment
  pickerRef | func | undefined | Ref to the picker component
  +onOpen | func | undefined | On open callback
  +onClose | func | undefined | On close callback
  #### DateTimepicker
  Prop | Type | Default | Definition
  @@ -127,6 +131,8 @@ TextFieldComponent | func, string | undefined | Component that should replace th
  InputAdornmentProps | object | {} | Props to pass to keyboard input adornment
  inputAdornmentPosition | enum 'start', 'end' | 'end' | Specifies position of keyboard adornment
  pickerRef | func | undefined | Ref to the picker component
  +onOpen | func | undefined | On open callback
  +onClose | func | undefined | On close callback
  <!-- Delay support of material-ui-pickers probably to rc-2
  