Merge pull request #1308 from vreemt/vreemt-add-to-signatories

feat: Add Sandra Koning to signatories

Author: karlgroves

layouts/index.html

@@ -1329,6 +1329,7 @@ <h3 id="signed-by">{{ T "topic08p06" | safeHTML}}</h3>
       <li>David Henkelmann, Accessibility & Technology Consultant, H&amp;D GmbH</li>
       <li>Mary Brunelle, Accessibility Consultant</li>
       <li>Tie Wang-Jones, PhD, Global Head of Inclusive Design & Accessibility, Digital Inclusive Design, Equity & Accessibility Centre of Expertise (Digital IDEA CoE), IKEA Retail (Ingka Group)</li>
+      <li>Sandra Koning, Software Engineer</li>
     </ol>
     <p>
       <a class="add-your-name" href="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/karlgroves/overlayfactsheet/#endorse-this-statement">