update readme on update() limit

Author: avbdr

MysqliDb.php

@@ -660,8 +660,7 @@ public function has($tableName)
      *
      * @param string $tableName The name of the database table to work with.
      * @param array  $tableData Array of data to update the desired row.
-     * @param int|array $numRows Array to define SQL limit in format Array ($count, $offset)
-     *                           or only $count
+     * @param int    $numRows   Limit on the number of rows that can be updated.
      *
      * @return bool
      */

readme.md

@@ -152,6 +152,12 @@ else
     echo 'update failed: ' . $db->getLastError();
 ```
 
+`update()` also support limit parameter:
+```php
+$db->update ('users', $data, 10);
+// Gives: UPDATE users SET ... LIMIT 10
+```
+
 ### Select Query
 After any select/get function calls amount or returned rows is stored in $count variable
 ```php