SDS platform: Use a custom thumbnail

<p dir="ltr">In this self-help guide, you will learn:</p><ul><li>how to assign a custom thumbnail image to a research item, project or collection.</li></ul><p dir="ltr"><b>Links</b></p><ul><li>SDS service: <a href="https://www.sds.ox.ac.uk/" rel="noreferrer" target="_blank">https://www.sds.ox.ac.uk</a></li><li>SDS platform: <a href="https://portal.sds.ox.ac.uk" rel="noreferrer" target="_blank">https://portal.sds.ox.ac.uk</a></li></ul><p dir="ltr"><br></p><p dir="ltr">Music 'Park Bench' courtesy of Apple iMovie.</p>