Merge pull request JedWatson#1281 from jtulk/patch-1

Documentation to backspaceToRemoveMessage Property

README.md

@@ -343,6 +343,7 @@ function onInputKeyDown(event) {
 	autoload 	|	bool	|	true		|	whether to auto-load the default async options set
 	autosize  | bool | true  | If enabled, the input will expand as the length of its value increases
 	backspaceRemoves 	|	bool	|	true	|	whether pressing backspace removes the last item when there is no input value
+	backspaceToRemoveMessage	|	string	|	'Press backspace to remove {last label}'	|	prompt shown in input when at least one option in a multiselect is shown, set to '' to clear
 	cache	|	bool	|	true	|	enables the options cache for `asyncOptions` (default: `true`)
 	className 	|	string	|	undefined	|	className for the outer element
 	clearable 	|	bool	|	true		|	should it be possible to reset value