docs: update content

Author: mrholek

docs/content/forms/multi-select.md

@@ -261,7 +261,7 @@ Call the time picker via JavaScript:
 ```js
 const mulitSelectElementList = Array.prototype.slice.call(document.querySelectorAll('.form-multi-select'))
 const mulitSelectList = mulitSelectElementList.map(mulitSelectEl => {
-  return new coreui.DatePicker(mulitSelectEl, {
+  return new coreui.MultiSelect(mulitSelectEl, {
     // options
   })
 })