ux: remove Add to README label text

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dotsystemsdevs

src/components/CertificateCard.tsx

@@ -588,9 +588,6 @@ export default function CertificateCard({ cert, onReset }: Props) {
               <div style={{ display: 'flex', flexDirection: 'column', gap: '6px' }}>
                 {/* eslint-disable-next-line @next/next/no-img-element */}
                 <img src={shieldsUrl} alt="commitmentissues badge" style={{ height: '28px', display: 'block' }} />
-                <span style={{ fontFamily: UI, fontSize: '10px', fontWeight: 600, color: '#9a8a7a', letterSpacing: '0.1em', textTransform: 'uppercase' }}>
-                  Add to README
-                </span>
               </div>
               <button
                 type="button"