Update README.md

Author: irfaardy

README.md

@@ -8,8 +8,8 @@
 
 	    use  Irfa\Roulete as Roll;
        
-   	    echo Roll::spin(['common ITEM1' => 70,
-   		'Rare ITEM 2' => 29.4,
-   		'SSR ITEM' => 0.3,
+   	    echo Roll::spin(['common ITEM1' => 70,// 70% chance
+   		'Rare ITEM 2' => 29.4,// 29.4% chance
+   		'SSR ITEM' => 0.3,// 0.3% chance
    		'SSR ITEM' => 0.3,]);