Add doc link.

redredimano · redredimano · commit 835bd9a5f59a · 2020-10-07T11:17:49.000+08:00
diff --git a/src/Html/Button.php b/src/Html/Button.php
@@ -147,6 +147,7 @@ public function className($value)
      *
      * @param string $value
      * @return $this
+     * @see https://datatables.net/reference/button/excelHtml5
      */
     public function customize($value)
     {

Original file line number	Diff line number	Diff line change
`@@ -147,6 +147,7 @@ public function className($value)`
`147`	`147`	`*`
`148`	`148`	`* @param string $value`
`149`	`149`	`* @return $this`
	`150`	`+ * @see https://datatables.net/reference/button/excelHtml5`
`150`	`151`	`*/`
`151`	`152`	`public function customize($value)`
`152`	`153`	`{`