Add javascript comments to the dt-ids snippet

  ga('send', 'pageview');

</script>

<script>

  // This snippet fixes a bug caused by Github's pages-gem using kramdown v1.11.1.

  // In order for anchor links to point to the correct place in the glossary, they must have an id

  // This snippet ensures every definition term has an id

  // See https://github.com/swcarpentry/styles/pull/129

  $('dt').each(function () {

    if (!this.id) {

      var id = $(this).text();

      // If there's a ( in the name (e.g., "comma-separated values (CSV)") - just take everything up to the first (

      var index = id.indexOf('(');

      if (index > 0) {

        id = id.substring(0, index);

      }

      // Strip leading and trailing whitespace, convert spaces to dashes and convert everything to lowercase

      id = id.trim().replace(/ /g, '-').toLowerCase();

      this.id = id;

    }