Fix typo

Author: dritter

lib/angular-csv-import.js

@@ -35,7 +35,7 @@ csvImport.directive('ngCsvImport', function() {
 		  		'<md-switch class="ng-csv-import-header-switch" ng-model="header"></md-switch>') +
 			'<div ng-show="encodingVisible"><div class="label">Encoding</div><span>{{encoding}}</span></div>'+
 			'<div ng-show="separatorVisible">'+
-			'<div class="label">Seperator</div>'+
+			'<div class="label">Separator</div>'+
 			'<span><input class="separator-input ' + (material ? '_md md-input' : '')  + ' " type="text" ng-change="changeSeparator" ng-model="separator"><span>'+
 			'</div>'+
 			'<div>' +