magento module rewriter url

<global>
    <rewrite>
        <instsgram_url>
            <from><![CDATA[/editorial.html/]]></from>
            <to><![CDATA[instagram/index/index]]></to>
            <complete>1</complete>
        </instsgram_url>
    </rewrite>
</global>

/*
Note: <to> is real router
      <from> is url after rewiter