What have I done wrong?

I have inserted the whole code where is says “Code to insert in header” as follows (xxxxxx for security!) Is that right?
Steve
<!– Google Code for Remarketing Tag –>
<!————————————————–
Remarketing tags may not be associated with personally identifiable information or placed on pages related to sensitive categories. See more information and instructions on how to setup the tag on: https://google.com/ads/remarketingsetup
—————————————————>
<script type=”text/javascript”>
/* <![CDATA[ */
var google_conversion_id = xxxxxxxxxx;
var google_custom_params = window.google_tag_params;
var google_remarketing_only = true;
/* ]]> */
</script>
<script type=”text/javascript” src=”//www.googleadservices.com/pagead/conversion.js”>
</script>
<noscript>
<div style=”display:inline;”>

</div>
</noscript>